Particles
What are particles that are too small to be seen?
Atoms or Molecules
What is the property for measuring how much matter is inside of an object?
Mass
Name the three states of matter.
Solid, liquid, gas
What does it mean if something is denser than water?
How does air in a balloon illustrate the concept of particles?
Air is made of tiny particles that fill the space inside the balloon.
What is the term for a solid changing into a liquid?
Melting
What state of matter has a definite shape and volume?
Solid
Which object will float in water: a rock or a piece of wood?
A piece of wood
What happens to the particles in a gas when it is heated?
They move faster and spread out more.
What is relative density?
If something will sink or float in the water based on the density of the water.
What happens to the shape of a liquid when it is poured?
It takes the shape of its container.
Why do objects like ice float on water?
Because ice is less dense than the water.
Give an example of a material made up of particles that can be seen with a microscope.
A grain of salt or a drop of water.
What is solubility?
the ability of a substance to dissolve in water
How do particles behave in a gas?
They move freely and are far apart.
What is an object that has more relative density than water?
Rock, metal spoon, marble, etc.
What is the relationship between temperature and particle movement?
As temperature heats up, particle movement speed up.
When objects pull towards a magnet, they ???????.
What objects push away from a magnet, they ??????.
Attract, repel
What is condensation?
The process of a gas turning into a liquid.
What is an object that has less relative density than water?
Beach ball, feather, straw, etc.