KS3 Elements, Mixtures and Compounds | Baamboozle - Baamboozle

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Which of the following is a compound?

H2O

O2

Cl

H2

Which of these is the smallest?

a molecule

an atom

Which of the following is not a compound?

methane

carbon dioxide

lithium

water

Which word means a single sphere that makes up matter?

molecule

particle

piece

atom

Which of the following are elements?

D only

B only

B and D

A and C

Which element has the symbol He?

hydrogen

helium

Which word means a substance that contains only one type of atom?

particle

element

compound

mixture

Which word means a substance that contains different types of particles that are not chemically joined?

mixture

compound

element

Which of the following diagrams contain compounds?

D only

B only

A and C

A only

Which of the following diagrams shows a mixture?

C only

A and C

A only

D only

How many different atoms are there in a compound?

3

2

2 or more

1

Which word is a general term for a small piece of matter?

atom

particle

element

Which of the following is not an element?

Hydrogen

magnesium

carbon dioxide

oxygen

How many different elements are there in CO2?

3

2

1

Which word means a substance that contains 2 or more different atoms that are chemically joined?

mixture

element

compound

Which statement about atoms and molecules is correct?

Elements always exist as pairs of atoms called molecules

Elements always exist as separate atoms

Elements and compounds can exist as molecules

Pb is the chemical symbol for which element?

gold

lead

iron

nickel

Which word means 2 or more atoms (that could be the same or different) that are chemically joined together?

molecule

compound