SOLIDS
Which of these is an example of a solid? The whiteboard, juice, or a cloud.
The whiteboard
Which of these is an example of a liquid? Ice, honey, smoke.
Honey
Which of these is an example of a gas? Fog, smoke, or air.
Air
Ice-cream melting in the sun is an example of what process?
Melting
Which state of matter has the particles moving the fastest?
Gas.
How are particles arranged in a solid?
They are tightly packed together and vibrating in place.
How are particles arranged in a liquid?
Close together, but able to move and slide around each other.
How are the particles arranged in a gas?
They are far apart and move freely.
Freezing
Why are solids difficult to compress?
Their particles are tightly packed together.
Name the three OBSERVABLE properties of a solid.
Shape is constant, volume is constant and mass is constant.
Name three OBSERVABLE properties of liquids.
Shape is varying, volume is constant, mass is constant.
Shape is varying, volume is varying and mass is constant.
What is the process of a gas turning into a liquid?
Condensation.
Describe what happens to the particles when a solid is heated and becomes a liquid.
When a solid is heated, its particles gain energy and begin to vibrate faster. As they gain more heat, the particles move further apart and are able to slide around each other, causing the solid to melt into a liquid.
Why can't solids flow like liquids?
Their particles are tightly packed and cannot move around each other.
Which liquid is more viscous, water or honey?
Honey.
Because there are gaps in between the particles.
Why do we use the sun to dry our wet clothes? Explain how they dry.
The water on the clothes is heated and evaporates into gas.
Why can liquids be poured but solids cannot?
Because the particles move around each other.
Explain what happens to the particles in a solid when heat is added.
The particles gain energy, vibrate faster and spread slightly apart.
When a liquid is heated, what happens to the particles?
They gain energy, move faster, and get further apart.
Explain why you can smell perfume sprayed from across the room.
Gas particles move quickly and spread it across the air.
What would happen to a gas if it was cooled down enough?
The particles would cool and slow down, creating a solid. This process is called deposition.
What is this process: The particles are close together, but moving past one another, they heat up and move further apart and faster.
Evaporation.