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1.
Label these states of matter?
answer
Solid
Liquid
Gas
2.
Which state of matter has a fixed shape
and volume?
answer
Solid
3. Which state of matter has a
fixed volume but no fixed shape
(it takes the shape of the container it’s placed in)?
answer
Liquid
4. Which state of matter doesn’t have a
fixed volume or shape (it expands to fill the
container)?
answer
Gas
5.
Explain why cooling the hot ball
allows it to fit through the hoop?
The ball has contracted. The particles which
make it are closer together.
6.
What are the small particles called
that make up all matter?
answer
ATOMS
7.
Describe how the particles are
arranged in a solid?
answer
They vibrate and are arranged in
rows with very small spaces
between them.
8. Which state of matter has small
spaces between the particles but is
NOT arranged in neat rows?
answer
Liquid
9.
What describes particles in a liquid
sliding over each other?
answer
FLOW
10. Which state of matter has particles
which constantly move about and
have big spaces between them?
answer
GAS
11. Which state of matter has the
most energy? answer
Gases have the most energy
Solids have the least energy
12. Which state of matter can be
compressed? Why?
answer
Gases
Because they have large spaces
between molecules
13.
Can solids be compressed?
Explain you answer.
answer
No
Because there are only small spaces between
the particles
14. Can liquids be compressed?
Explain you answer. answer
No
Because there are only
small spaces between the
particles
15. What will happen to the total volume
when these are mixed? Why?
The volume will decrease.
The small particles fit into the
gaps between the large
particles
16. Explain why heating the ball
stops it fitting through the hoop?
The ball has expanded. The particles
which make it are further apart.
17. What is diffusion?
The movement
of particles from
a region of high
concentration to
a region of low
concentration
answer
18. Which state of matter diffuses
easily?
Gases diffuse easily
Liquids less quickly
Solids DO NOT diffuse
easily
19. Which word is used to describe a solid
changing into a liquid?
answer
Melting
20. What happens at melting
point?
answer
A solid changes into a liquid
21. Which word is used to describe a
liquid changing into a gas?
answer
Evaporation
22. What happens at the boiling
point of a substance?
answer
It changes from a liquid to a gas.
23. Which term is used to describe a
substance changing from a liquid to a solid?
answer
Freezing
24. What do you call the
temperature at which a substance
changes from a liquid to a solid?
FREEZING POINT
25. What will happen to a
substance as you heat it?
It EXPANDS
26. What happens when a
substance expands?
The particles move
further apart
27. Explain why the bimetallic
strip bends when heated?
The two metals expand at different
rates