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Molecules of Life

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

What is the best definition for a MOLECULE?

a)

A group of atoms joined together

b)

Something that is inside of a cell

c)

A mineral or other non-living part of the environment

2.

True or False: Molecules themselves are living things

a)

True

b)

False

3.

True or False: Molecules can be solid, liquid, or gas

a)

True

b)

False

4.

What does O2 stand for?

a)

Carbon dioxide gas

b)

Oxygen gas

c)

Ontelygen

d)

Water

5.

What does CO2 stand for?

a)

Carbon Dioxide gas

b)

Oxygen gas

c)

Ontelygen

d)

Water

6.

What does H2O stand for?

a)

Carbon Dioxide gas

b)

Oxygen gas

c)

Ontelygen

d)

Water

7.

True or False: All living things are made up of molecules

a)

True

b)

False

8.

True or False: All non-living things are made of molecules

a)

True

b)

False

9.

What are the atoms in H2O?

a)

One Hydrogen atom and one Oxygen atom

b)

One Hydrogen atom and two Oxygen atoms

c)

2 Hydrogen atoms and one Oxygen atom

d)

3 Hydrogen atoms and 2 Oxygen atoms

10.

What are the atoms in CO2?

a)

One Carbon atom and 2 Oxygen atoms

b)

2 Carbon atoms and one Oxygen atom

c)

2 Carbon atoms and 2 Oxygen atoms

d)

One Carbon atom, 2 Oxygen atoms, and one Hydrogen atom

11.

Which of the following are examples of molecules? Select ALL that apply

a)

DNA

b)

Water

c)

Sugar

d)

Bacteria

12.

What is the correct order from SMALLEST to LARGEST?

a)

Cells -> Atoms -> Molecules -> Tissues -> Organs

b)

Organs -> Tissues -> Cells -> Molecules -> Atoms

c)

Molecules -> Atoms -> Cells -> Tissues -> Organs

d)

Atoms -> Molecules -> Cells -> Tissues -> Organs