Discover our tutors in your city and overseas

190202 tutors available

Excellent (4.7)

1.8 million student reviews

The list of tutors

Nancy

Summerside, Canada (face-to-face &online)

Chemistry will never be same! learn with me and excel in exams. over 6 years of experience in tutoring and helping students all over the world.

S$23/h
1^st lesson free

Kriti

Chandigarh, India (online)

A budding doctor ready to teach the next generations for a bright future

S$11/h
1^st lesson free

Anubhav

Raipur, India (online)

Come learn and shine. i don't want literally anything just want to spread knowledge

S$1/h
1^st lesson free

Sanjana

Beraberia, India (face-to-face &online)

Chemistry postgraduate passionate about teaching school students till class 12 and guiding them for competitive examinations.

S$4/h
1^st lesson free

Kiran kumar

Mangaluru, India (online)

I am a post graduate in hr management and i have done my bachelors in chemical engineering. i am topper in mathematics.

S$8/h
1^st lesson free

Amarachi

Enugu, Nigeria (face-to-face &online)

I can teach and also help you understand physics, mathematics and chemistry with ease

S$4/h
1^st lesson free

Gtm

Katihar, India (online)

Currently pursuing b.tech in mechanical trade.well knowledge in chemistry with better explanation

S$13/h
1^st lesson free

Gary

Dearing, United States (online)

Retired hs and college instructor teaches math, physics & chemistry to high school and adult ed students in columbus ohio

S$37/h
1^st lesson free

Ayisimaka

Alakahia, Nigeria (face-to-face &online)

Medical physiologist with a lot of experience teaching both primary, secondary and tertiary levels

S$3/h
1^st lesson free

Gaurav rajpoot

Prayagraj, India (face-to-face &online)

Conscientious and flexible middle school english teacher well-versed inusing social skills and empathy to manage student behavior; utilizes feedback from students to create compelling lesson plans th

S$9/h
1^st lesson free

Oluwatosin

Kaduna, Nigeria (face-to-face &online)

Graduate of science laboratory technology experience in teaching chemistry,basic science and biological science proficiently.

S$5/h
1^st lesson free

Jeff

Vanderbijlpark, South Africa (face-to-face &online)

Engineer graduate, ready to teach and get to know all of you.

S$13/h
1^st lesson free

Vikash

New Delhi, India (face-to-face &online)

I'm graduate from university of delhi. i'm specialised in teaching as i worked as an chegg india expert

S$8/h
1^st lesson free

Pramod

, India (face-to-face &online)

No gain without pain first we fixing a target then got it

S$11/h
1^st lesson free

Mayar

, India (face-to-face &online)

I'm engineering student and still studying i'm good in teaching maths i'm already experienced about teaching

S$9/h
1^st lesson free

Asiya

Hyderabad, India (face-to-face &online)

Are you looking online tutors here i am.. now i'm pursing b.tech in information technology

S$5/h
1^st lesson free

Sivathanushan

Ruislip, United Kingdom (online)

I achieved 2a* 2a in alevels with maths and chemistry a*. i am also a self employed teacher.

S$26/h
1^st lesson free

Ajala

Lagos, Nigeria (face-to-face &online)

Chemist impact knowledge and teaches how to survive to make a better living and future.

S$4/h
1^st lesson free

Rhea

Manipal, India (face-to-face &online)

Biotechnology engineer teaching biology, chemistry and maths in manipal. i love students of all ages. i am now a medical master's student and have gotten many academic awards, certificates, and semina

S$13/h
1^st lesson free

Sreeja

, India (online)

I am a software engineer, current i am working in top it company in india, so i can teach big data technology as well

S$11/h
1^st lesson free

Yash

Moradabad, India (online)

Mba graduate from top-bschool teaches mathematics and other subjects with logical thinking. more focused on aptitude side of a student.

S$11/h
1^st lesson free

Anurag

Mumbai, India (face-to-face &online)

Hello everyone i'm a tutor with 3 years of experience thank you

S$11/h
1^st lesson free

다라

, Nigeria (online)

Skilled chemistry tutor with knowledge on information technology and english language.. can also teach basic physics

S$4/h
1^st lesson free

Neema

Sangrur, India (face-to-face &online)

Hnbgu graduate teaching biology , maths and other science subjects, gold medalist in graduation.

S$11/h
1^st lesson free

Shikha eveline

Bengaluru, India (online)

Forensic science graduate currently excited to spend my free time to teach

S$11/h
1^st lesson free

Yash

Budaun, India (face-to-face &online)

Teacher for maths physics chemistry masters in msc maths from delhi university

S$27/h
1^st lesson free

Oyeniji

Ibadan, Nigeria (online)

Professional chemistry guider, giving you simplest and best means to understand every concept

S$5/h
1^st lesson free

Raphael

Aba Odo, Nigeria (face-to-face &online)

A home tutor with phd. biochemistry in-view and wealth of experience in teaching ssce and jamb students chemistry, maths and natural sciences with ability to explain complex topics in simple term

S$2/h
1^st lesson free

Akinyemi

Akure, Nigeria (face-to-face &online)

Patience is a necessity when it comes to impacting knowledge. looking for quality at an affordable rate then i'm your go to guy

S$5/h
1^st lesson free

Favour

Enugu, Nigeria (face-to-face &online)

Highly intellectual chemistry and physics tutor. i look forward to teaching students.

S$4/h
1^st lesson free

Parthvi

Bengaluru, India (online)

I'm a student of b.tech in mechanical engineering. i teach physics and biology to tenth-standard students. i take some chemistry and maths topics as well.

S$7/h
1^st lesson free

Mustapha

Ibadan, Nigeria (face-to-face &online)

Skilled and experienced tutor who is enthusiastic in impacting in people's lives.

S$3/h
1^st lesson free

James

Oko Erin, Nigeria (online)

Versatile chemistry and physics tutor for o'level students. i specialize in jamb coaching

S$4/h
1^st lesson free

Zosky

Lekki, Nigeria (face-to-face &online)

Engineer and therefore very skilled science and mathematics teacher. great english teacher as well. i can prepare students for any external and internal exam.

S$4/h
1^st lesson free

Joachim

Montpellier, France (face-to-face &online)

Nearly graduated (at the end of the year) of a license in biology, i would be able to help with homework in scientific subjects. good level of english (c1). i have already worked with an add student.

S$19/h
1^st lesson free

Abhisek

Aurangabad, India (face-to-face &online)

One-year experienced physics tutor for class 9 and 10. with personal and unique way of teaching.

S$7/h
1^st lesson free

Abhinav

Dehradun, India (online)

Mechanical engineer who is professionally working as a marine engineer. i have inclinations towards musical instruments as well:particularly drums and guitar.

S$13/h
1^st lesson free

Krishna

Sikar, India (online)

Have 2 years experience in teaching within more than 2 school and i graduated in mathematics.

S$12/h
1^st lesson free

Ankit

, India (online)

Delhi university graduate can teach maths chemistry and physics make learning fun

S$20/h
1^st lesson free

Feny

, Canada (online)

Biomedical engineering graduate student teaches math, sciences (biology, chemistry, organic chemistry, biochemistry), english, french from gr.6 to all university levels

S$28/h
1^st lesson free

Sukhdev singh kaushal

, India (face-to-face &online)

Make concepts easy for better understanding of students and teach science practically

S$7/h
1^st lesson free

Olaniyi

Otukpo, Nigeria (face-to-face &online)

Sam's lesson hub, an easy way to learn new things as a student

S$3/h
1^st lesson free

Isha

Haldwani, India (online)

I am a mbbs student. and i take tuitions for physics, chemistry, biology and maths upto class 10 in my locality.

S$12/h
1^st lesson free

Amman

, United Kingdom (face-to-face &online)

Final year biomedical sciences student at st. george’s university of london so it follows that sciences are my most frequently taught subject, my teaching style is comprehensive meaning i approach lea

S$34/h
1^st lesson free

Vinay

Narsapur, India (online)

A tutor and a complete guide for you to get out fear and stay focused.

S$5/h
1^st lesson free

Omkar

Dehradun, India (face-to-face &online)

Recently i am doing bsc and i have 4 year experience in tutoring job

S$12/h
1^st lesson free

Ekta

Greater Noida, India (face-to-face &online)

I have done b.tech and l'm looking forward to teach students upto class 8th

S$7/h
1^st lesson free

Madhusoodan

Meerut, India (face-to-face &online)

Total experience of 25 years in private tutoring. extremely calm and patient with kids.

S$11/h
1^st lesson free

Mrmudit

Gwalior, India (face-to-face &online)

I'm a teacher.i'm completed our bpharma degree & have 3 to 4 year (coaching) teaching experience.

S$9/h
1^st lesson free

Jovita

Port Harcourt, Nigeria (online)

Engineering student, teaches maths and chemistry for secondary schools students through home lessons.

S$2/h
1^st lesson free

Aaron

New Haven, United States (online)

Economics and statistics international student at yale university interested in tutoring students

S$38/h
1^st lesson free

Raghu

Bengaluru, India (face-to-face &online)

B tech in eee… easy way of understanding and remembering the concepts

S$8/h
1^st lesson free

Olawale

Ibadan, Nigeria (face-to-face &online)

A biochemist with a bulk of experience in tuturing students in chemistry, mathematics, and other related science subjects.

S$3/h
1^st lesson free

Abhi

, India (online)

Name : abhishek qualification:btech in metallurgical and materials engineering university: nit jamshedpur expertise in : physical metallurgy, electrochemistry, thermodynamics, solid state, heat tr

S$7/h
1^st lesson free

Fakeema farhath

, India (online)

B pharm graduate and pharmacist,teach chemistry from the basic in english and malayalam

S$3/h
1^st lesson free

Lokesh

Abu Road, India (online)

Chemistry conceptual hai. aur behtareen tareeke se chemistry ko aapke concept bhetar karte hue step to step aage ke chapters ko samjhaoonga

S$1/h
1^st lesson free

Udoh

Ikot Akpaden, Nigeria (online)

Mathematician teaches all forms of mathematics for all student to understand irrespectiveof your intelligent quotient level

S$5/h
1^st lesson free

Non copyright sounds

, India (online)

-bsc in physics honours 1st year student -i'll make you love physics

S$7/h
1^st lesson free

Efe

Port Harcourt, Nigeria (face-to-face &online)

Cerified chemistry graduate who loves teaching. i can teach basic/elementary science, chemistry, biology, mathematics basics and introduction to cryptocurrency.

S$3/h
1^st lesson free

Anuja

Thiruvananthapuram, India (face-to-face &online)

Solution for all problems. fun and easy way of doing all mathematical problems.

S$7/h
1^st lesson free

Dorea

Kuala Lumpur, Malaysia (online)

Experienced in teaching children of age 5-13 (1to1), patient and passionate

S$16/h
1^st lesson free

Nadhirah

Kota Kinabalu, Malaysia (online)

A cell and molecular biology degree holder, an experienced tutor for chemistry, biology and mathematics.

S$11/h
1^st lesson free

Izzah

Pasir Mas, Malaysia (online)

Teaches math and chemistry for all level. personal online teaching education (in chemistry) student from upsi

S$6/h
1^st lesson free

Nurul

Pasir Gudang, Malaysia (online)

Solved questions with simple yet precise answer. full marks for sure.fresh graduate tutor.

S$16/h
1^st lesson free

Bilal

Perak, Malaysia (face-to-face &online)

Experienced tutor with qualified skills is perceiving your need to be promoted and developed

S$13/h
1^st lesson free

Karishma

Kovvur, India (online)

I teach physics , chemistry at primary level and i teach maths at high level. i'm doing my bachelor's..

S$8/h
1^st lesson free

Krishnapriya k

Kozhikode, India (face-to-face &online)

I completed my masters in chemistry. capable to teach chemistry and biology.

S$12/h
1^st lesson free

Bindu

Gudyanam Palli, India (face-to-face &online)

Easy learning with simpler methods in all aspects of concepts friendly teaching

S$1/h
1^st lesson free

Vishnu s kumar

, India (face-to-face &online)

Iam an engineering graduate and i can teach maths, physics, chemistry as i have learnt the advanced portions of these subjects. i can teach biology, history, geography because i'm sort of a buff in th

S$7/h
1^st lesson free

Lujain

Crewe, United Kingdom (online)

Female uni student teaching chemistry, biology, physics, mathematics at a-level and gcse levels. virtual lessons only. speaks english & arabic £15/per hour gsces grades: bio (a), chem (a), physics (

S$26/h
1^st lesson free

Paul

Manchester, United Kingdom (face-to-face &online)

Undergraduate as a paramedic science student. previously i have completed biology, physics, and chemistry at college. ideally a gcse student approaching exams struggling with sciences. can travel ar

S$22/h
1^st lesson free

Ishita

Unnao, India (face-to-face &online)

A student who likes to share knowledge. ive taught kids from grade 5-10 maths & science

S$11/h
1^st lesson free

Aiman

Pune, India (online)

I am a tutor since last 9 years. i have completed my masters in science with chemistry as my principal subject.

S$4/h
1^st lesson free

Oyock

Awka, Nigeria (face-to-face &online)

Industrial chemist graduate that teaches mathematics and chemistry for secondary school and a level in nigeia

S$3/h
1^st lesson free

Harshal

Ahmedabad, India (face-to-face &online)

Maths expert with more than 5 years of experience and have skills to make maths easy for students

S$9/h
1^st lesson free

Shifa

Kolkata, India (face-to-face &online)

An easy going home tutor with four years teaching experience.with free demo class.

S$4/h
1^st lesson free

Shashank

, India (online)

Let's come and join for a new journey of life smoothly and easy

S$5/h
1^st lesson free

Aditya

Ghaziabad, India (face-to-face &online)

Persuing btech from cse branch and passed intermediate with pcm having 85% marks and scored 95% in maths and 92% in chemistry

S$1/h
1^st lesson free

Tejas laxetty

Secunderabad, India (face-to-face &online)

I am a graduate from osmania university. have a well grip and foundation in all the basics

S$11/h
1^st lesson free

Ritik

Kanpur, India (online)

All subject teacher from iit kanpur, btech in electrical engineering. contact for help

S$13/h
1^st lesson free

Pritam

, India (face-to-face &online)

Pritam ghosh teaches maths and physics till high school level studies in college

S$2/h
1^st lesson free

Teena evangeine

Chennai, India (face-to-face &online)

Graduate from stella maris college( b.sc mathematics), currenty doing my post graduation at loyola.interesting in teaching students from class 1 to 10.

S$13/h
1^st lesson free

Ashu

Patna, India (online)

Bhu mca pg student teaching maths upto class 10th. teaching experience- 5 years

S$8/h
1^st lesson free

Ommprakash nayak

, India (face-to-face &online)

Graduate in chemistry from utkal university odisha, passionate about teaching,yoga and farming

S$1/h
1^st lesson free

Abhishek

, India (face-to-face &online)

Graduated in physics+ 2 year experience in teaching currently aspiring to be a civil servent

S$7/h
1^st lesson free

Ashwitha

Hyderabad, India (online)

Pursuing btech.i can able to teach maths and chemistry.iam very well in that two subjects

S$11/h
1^st lesson free

Manohar lal

, India (face-to-face &online)

I have experience 4 years in teaching sector. i teached 6 to 10 class science in private school.

S$11/h
1^st lesson free

Subir

Kolkata, India (online)

Physics (honours) graduate. teaching physics fundamentals using real time models. making physics learing and problem solving a fun through conceptual approach.

S$7/h
1^st lesson free

Sai

Visakhapatnam, India (online)

I will teach biology,chemistry, mathematics and telugu.already i have an experience in biology

S$11/h
1^st lesson free

Utkarsh

Modinagar, India (online)

B tech graduate from reputed institution and teaching chemistry to students in helping and fun manner.

S$7/h
1^st lesson free

Shahidha

Aluva, India (face-to-face &online)

Currently pursuing btech from cusat.i love teaching and nurturing students with knowledge

S$9/h
1^st lesson free

Kartik

Navi Mumbai, India (face-to-face &online)

I am software engineer working in infosys. also i am preparing for upsc. i have teaching experience of 2 years in classes. i can make your child better in study.

S$4/h
1^st lesson free

Mandula

Warangal, India (online)

Iam an jee ,eamcet trained student. 2nd year btech engineering at kits warangal intermediate 98 percentage.

S$13/h
1^st lesson free

Roopleen

Patiala, India (face-to-face &online)

Engineering graduate alongwith 4 years+ teaching experience. let'sget along to make studies easier!

S$11/h
1^st lesson free

Abhijit

, India (face-to-face &online)

A graduate with expertise in maths. i will provide every concept clearly.

S$7/h
1^st lesson free

Luv

Kota, India (online)

Persuing science teaching methodologies and wanna share my grabbed knowledge to others.

S$11/h
1^st lesson free

Harrison

Nottingham, United Kingdom (online)

Current mechanical engineering student at university of nottingham - passionate about sciences; teaching stem to the new generation.

S$21/h
1^st lesson free

Shalini

, India (face-to-face &online)

Msc chemistry post graduate iit gate chemistry 2022 qualified teach chemistry forpgt school level

S$11/h
1^st lesson free

Prerna kewlani

, India (online)

Pharmacy graduate with good chemistry. believes in learning with logic and reasons

S$8/h
1^st lesson free

Raghav

Jaipur, India (online)

2nd year civil department student mnitian. i can teach you goods and valuable knowledge.

S$10/h
1^st lesson free

Amina shaikh

Ponda, India (online)

Bsc graduate can teach upto 12th grade sceince / chemistry goa state board

S$7/h
1^st lesson free

Mahak

Rewari, India (online)

I am btech (computer engineering ) student of haryana's top university (ymca).i teach physics,chemistry to secondary school and middle school students.

S$4/h
1^st lesson free

Essential information about your chemistry lessons
✅ Average price :	S$19/h
✅ Average response time :	2h
✅ Tutors available :	190202
✅ Lesson format :	Face-to-face or online

Back

Forward

What do you want to learn?

Discover our tutors in your city and overseas

190202 tutors available

The list of tutors

Chemistry will never be same! learn with me and excel in exams. over 6 years of experience in tutoring and helping students all over the world.

A budding doctor ready to teach the next generations for a bright future

Come learn and shine. i don't want literally anything just want to spread knowledge

Chemistry postgraduate passionate about teaching school students till class 12 and guiding them for competitive examinations.

I am a post graduate in hr management and i have done my bachelors in chemical engineering. i am topper in mathematics.

I can teach and also help you understand physics, mathematics and chemistry with ease

Currently pursuing b.tech in mechanical trade.well knowledge in chemistry with better explanation

Retired hs and college instructor teaches math, physics & chemistry to high school and adult ed students in columbus ohio

Medical physiologist with a lot of experience teaching both primary, secondary and tertiary levels

Conscientious and flexible middle school english teacher well-versed inusing social skills and empathy to manage student behavior; utilizes feedback from students to create compelling lesson plans th

Graduate of science laboratory technology experience in teaching chemistry,basic science and biological science proficiently.

Engineer graduate, ready to teach and get to know all of you.

I'm graduate from university of delhi. i'm specialised in teaching as i worked as an chegg india expert

No gain without pain first we fixing a target then got it

I'm engineering student and still studying i'm good in teaching maths i'm already experienced about teaching

Are you looking online tutors here i am.. now i'm pursing b.tech in information technology

I achieved 2a* 2a in alevels with maths and chemistry a*. i am also a self employed teacher.

Chemist impact knowledge and teaches how to survive to make a better living and future.

Biotechnology engineer teaching biology, chemistry and maths in manipal. i love students of all ages. i am now a medical master's student and have gotten many academic awards, certificates, and semina

I am a software engineer, current i am working in top it company in india, so i can teach big data technology as well

Mba graduate from top-bschool teaches mathematics and other subjects with logical thinking. more focused on aptitude side of a student.

Hello everyone i'm a tutor with 3 years of experience thank you

Skilled chemistry tutor with knowledge on information technology and english language.. can also teach basic physics

Hnbgu graduate teaching biology , maths and other science subjects, gold medalist in graduation.

Forensic science graduate currently excited to spend my free time to teach

Teacher for maths physics chemistry masters in msc maths from delhi university

Professional chemistry guider, giving you simplest and best means to understand every concept

A home tutor with phd. biochemistry in-view and wealth of experience in teaching ssce and jamb students chemistry, maths and natural sciences with ability to explain complex topics in simple term

Patience is a necessity when it comes to impacting knowledge. looking for quality at an affordable rate then i'm your go to guy

Highly intellectual chemistry and physics tutor. i look forward to teaching students.

I'm a student of b.tech in mechanical engineering. i teach physics and biology to tenth-standard students. i take some chemistry and maths topics as well.

Skilled and experienced tutor who is enthusiastic in impacting in people's lives.

Versatile chemistry and physics tutor for o'level students. i specialize in jamb coaching

Engineer and therefore very skilled science and mathematics teacher. great english teacher as well. i can prepare students for any external and internal exam.

Nearly graduated (at the end of the year) of a license in biology, i would be able to help with homework in scientific subjects. good level of english (c1). i have already worked with an add student.

One-year experienced physics tutor for class 9 and 10. with personal and unique way of teaching.

Mechanical engineer who is professionally working as a marine engineer. i have inclinations towards musical instruments as well:particularly drums and guitar.

Have 2 years experience in teaching within more than 2 school and i graduated in mathematics.

Delhi university graduate can teach maths chemistry and physics make learning fun

Biomedical engineering graduate student teaches math, sciences (biology, chemistry, organic chemistry, biochemistry), english, french from gr.6 to all university levels

Make concepts easy for better understanding of students and teach science practically

Sam's lesson hub, an easy way to learn new things as a student

I am a mbbs student. and i take tuitions for physics, chemistry, biology and maths upto class 10 in my locality.

Final year biomedical sciences student at st. george’s university of london so it follows that sciences are my most frequently taught subject, my teaching style is comprehensive meaning i approach lea

A tutor and a complete guide for you to get out fear and stay focused.

Recently i am doing bsc and i have 4 year experience in tutoring job

I have done b.tech and l'm looking forward to teach students upto class 8th

Total experience of 25 years in private tutoring. extremely calm and patient with kids.

I'm a teacher.i'm completed our bpharma degree & have 3 to 4 year (coaching) teaching experience.

Engineering student, teaches maths and chemistry for secondary schools students through home lessons.

Economics and statistics international student at yale university interested in tutoring students

B tech in eee… easy way of understanding and remembering the concepts

A biochemist with a bulk of experience in tuturing students in chemistry, mathematics, and other related science subjects.

Name : abhishek qualification:btech in metallurgical and materials engineering university: nit jamshedpur expertise in : physical metallurgy, electrochemistry, thermodynamics, solid state, heat tr

B pharm graduate and pharmacist,teach chemistry from the basic in english and malayalam

Chemistry conceptual hai. aur behtareen tareeke se chemistry ko aapke concept bhetar karte hue step to step aage ke chapters ko samjhaoonga

Mathematician teaches all forms of mathematics for all student to understand irrespectiveof your intelligent quotient level

-bsc in physics honours 1st year student -i'll make you love physics

Cerified chemistry graduate who loves teaching. i can teach basic/elementary science, chemistry, biology, mathematics basics and introduction to cryptocurrency.

Solution for all problems. fun and easy way of doing all mathematical problems.

Experienced in teaching children of age 5-13 (1to1), patient and passionate

A cell and molecular biology degree holder, an experienced tutor for chemistry, biology and mathematics.

Teaches math and chemistry for all level. personal online teaching education (in chemistry) student from upsi

Solved questions with simple yet precise answer. full marks for sure.fresh graduate tutor.

Experienced tutor with qualified skills is perceiving your need to be promoted and developed

I teach physics , chemistry at primary level and i teach maths at high level. i'm doing my bachelor's..

I completed my masters in chemistry. capable to teach chemistry and biology.

Easy learning with simpler methods in all aspects of concepts friendly teaching

Iam an engineering graduate and i can teach maths, physics, chemistry as i have learnt the advanced portions of these subjects. i can teach biology, history, geography because i'm sort of a buff in th

Female uni student teaching chemistry, biology, physics, mathematics at a-level and gcse levels. virtual lessons only. speaks english & arabic £15/per hour gsces grades: bio (a*), chem (a*), physics (

Undergraduate as a paramedic science student. previously i have completed biology, physics, and chemistry at college. ideally a gcse student approaching exams struggling with sciences. can travel ar

A student who likes to share knowledge. ive taught kids from grade 5-10 maths & science

I am a tutor since last 9 years. i have completed my masters in science with chemistry as my principal subject.

Industrial chemist graduate that teaches mathematics and chemistry for secondary school and a level in nigeia

Maths expert with more than 5 years of experience and have skills to make maths easy for students

An easy going home tutor with four years teaching experience.with free demo class.

Let's come and join for a new journey of life smoothly and easy

Female uni student teaching chemistry, biology, physics, mathematics at a-level and gcse levels. virtual lessons only. speaks english & arabic £15/per hour gsces grades: bio (a), chem (a), physics (