NEW
Font size
WorksheetsQuiz on Particles and Chemical Reactions
Total questions: 14
Worksheet time: 7mins
Which of the following statements about particles in a solid is true?
Particles move freely and quickly.
Particles are far apart and randomly arranged.
Particles are tightly packed in a regular pattern.
Particles can slide past each other easily.
What happens to the particles in a substance when it is heated?
They move more slowly and get closer together.
They break into new substances.
They move faster and spread further apart.
They become more tightly packed.
Which of the following best describes a chemical reaction?
A physical change where substances keep their identity
Mixing substances without any visible change
A change that forms a new substance
Heating a substance until it melts
Which of these is NOT considered a powder?
Sugar
Sand
Salt
Ice cubes
What does a property of a material describe?
Where the material was made
The age of the material
What a material looks like or how it behaves
The cost of the material
What best explains why solids keep their shape?
They have no particles
Their particles are far apart
Their particles are in a fixed position
Their particles are moving freely
Which of these materials is made up of a mixture?
Pure gold
Distilled water
Air
Oxygen gas
What happens to particles when a liquid turns into a gas?
They stop moving
They become heavier
They move much faster and spread far apart
They become tightly packed
Which statement about chemical reactions is correct?
No new substances are made
The substances only change shape
A new material with different properties is formed
Only the size of the substance changes
Which solid can be poured and takes the shape of its container?
Metal rod
Rock
Salt
Ice cube
What do all particles in matter have in common?
They are always in a fixed position
They are always the same size
They are always moving
What happens to particles when a solid is heated enough to melt?
They stop moving
They lose energy
They move faster and begin to slide past each other
They disappear
Why can powders be poured like liquids?
Their particles are in a gas state
The grains are small and can flow
They are made of water
Their particles are not real solids
Which change is a sign of a chemical reaction?
Freezing
Melting
Dissolving
Bubbling and a color change
