Science vocabulary worksheet for learning scientific terms and concepts.

Let's go through each section of the worksheet and solve it step by step, with explanations.

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1. Complete the names of scientists, using suffixes: -ist or -ian or -er.

We need to add appropriate suffixes (-ist, -ian, or -er) to form the correct job titles for scientists in various fields.

- physics – physicist
(A person who studies physics)

- archeology – archaeologist
(Note: "archaeologist" uses "-logist", but the instruction says to use -ist, -ian, or -er. However, the standard term is *archaeologist*, so we'll follow that. But if restricted to only those three, perhaps it's meant to be *archaeologist* anyway.)

✔ archaeologist (commonly accepted; note: "-logist" is acceptable in science contexts)

- mathematics – mathematician
(Person who studies mathematics)

- geology – geologist
(Person who studies geology)

- chemistry – chemist
(Person who studies chemistry)

- psychology – psychologist
(Person who studies psychology)

- biology – biologist
(Person who studies biology)

- astronomy – astronomer
(Person who studies astronomy)

- botany – botanist
(Person who studies botany)

- meteorology – meteorologist
(Person who studies meteorology)

> ⚠️ Note: The word "metheorology" is misspelled — should be meteorology.

✔ Corrected answers:

| Field | Scientist |
|------------------|-------------------|
| physics | physicist |
| archaeology | archaeologist |
| mathematics | mathematician |
| geology | geologist |
| chemistry | chemist |
| psychology | psychologist |
| biology | biologist |
| astronomy | astronomer |
| botany | botanist |
| meteorology | meteorologist |

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2. Fill the gaps with the correct noun from the box.

Box: lab, record, beaker, vapour, survey, conclusion, germs

a) The acid was poured into a beaker and put in the sink.
→ Beakers are common lab containers for liquids.

b) The liquid in the vial gave off a greenish vapour.
→ "Vapour" refers to gas released from a liquid.

c) Use rubbing alcohol to sanitize the surface and kill germs.
→ Alcohol kills bacteria and other microorganisms.

d) In a chemistry lab, experiments are conducted.
→ A laboratory is where scientific experiments happen.

e) The survey was conducted in a form of a questionnaire.
→ Surveys often involve questionnaires.

f) It is important to keep record of all our research for future reference.
→ "Keep records" is a common phrase.

h) Be careful not to introduce new ideas in the conclusion of your essay.
→ Conclusions summarize findings; new ideas belong in the body.

✔ Answers:
a) beaker
b) vapour
c) germs
d) lab
e) survey
f) record
h) conclusion

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3. Complete the phrases with: in / up / on / down / out / to

These are prepositions used with verbs to form idiomatic expressions.

a) The prolonged examinations resulted in new findings.
→ "Result in" = lead to something.

b) Alexander Fleming found out, that some types of mould can kill bacteria.
→ "Find out" = discover something.

c) Some minerals can be broken down into basic components.
→ "Break down" = decompose into simpler parts.

d) Copernicus came to a conclusion, that Earth orbits around the sun.
→ "Come to a conclusion" = reach a decision.

e) New technologies allowed scientists to carry out this research.
→ "Carry out" = perform an action.

f) Richard Feyn specialised in quantum electrodynamics.
→ "Specialise in" = focus on a subject.

g) Specialists were able to narrow down the causes of some cancers.
→ "Narrow down" = reduce possibilities.

h) Remember to turn in your research papers by the end of the week.
→ "Turn in" = submit.

✔ Answers:
a) in
b) out
c) down
d) to
e) out
f) in
g) down
h) in

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4. Connect these verbs with their definition.

Let’s match each verb with its correct definition.

#### Verbs:
- to examine
- to conduct
- to research
- to dissolve
- to oxidise
- to melt
- to estimate
- to contaminate

#### Definitions:
1. to study a subject in detail, in order to discover new information → to research
2. to organize and perform a particular activity → to conduct
3. to look at or consider a person or thing closely and carefully → to examine
4. to make something to combine with oxygen and lose hydrogen and create a new substance → to oxidise
5. to make something less pure or make it poisonous → to contaminate
6. to guess or calculate the cost, size, value, etc. of something → to estimate
7. to turn from something solid into something soft or liquid → to melt
8. to be absorbed by a liquid, especially when mixed → to dissolve

✔ Matching:

| Verb | Definition |
|------------------|----------|
| to examine | to look at or consider a person or thing closely and carefully |
| to conduct | to organize and perform a particular activity |
| to research | to study a subject in detail, in order to discover new information |
| to dissolve | to be absorbed by a liquid, especially when mixed |
| to oxidise | to make something to combine with oxygen and lose hydrogen and create a new substance |
| to melt | to turn from something solid into something soft or liquid |
| to estimate | to guess or calculate the cost, size, value, etc. of something |
| to contaminate | to make something less pure or make it poisonous |

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✔ Final Answer Summary:

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1. Scientists:

- physics – physicist
- archaeology – archaeologist
- mathematics – mathematician
- geology – geologist
- chemistry – chemist
- psychology – psychologist
- biology – biologist
- astronomy – astronomer
- botany – botanist
- meteorology – meteorologist

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2. Nouns:

a) beaker
b) vapour
c) germs
d) lab
e) survey
f) record
h) conclusion

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3. Prepositions:

a) in
b) out
c) down
d) to
e) out
f) in
g) down
h) in

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4. Verb Definitions:

- to examine → to look at or consider a person or thing closely and carefully
- to conduct → to organize and perform a particular activity
- to research → to study a subject in detail, in order to discover new information
- to dissolve → to be absorbed by a liquid, especially when mixed
- to oxidise → to make something to combine with oxygen and lose hydrogen and create a new substance
- to melt → to turn from something solid into something soft or liquid
- to estimate → to guess or calculate the cost, size, value, etc. of something
- to contaminate → to make something less pure or make it poisonous

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