States of Matter
What are the three states of matter?
Solid, Liquid, and Gas
What is the main source of energy for Earth?
The Sun
What happens to a solid when it reaches its melting point?
It turns into a liquid
What kind of energy does a light bulb use?
Light energy
What tool do we use to measure mass?
Balance scale
What state of matter takes the shape of its container but has a fixed volume?
Liquid
What type of energy makes things move?
Kinetic energy
What happens to a liquid when it reaches its boiling point?
It turns into a gas
What type of energy do we feel as heat?
What does mass measure?
The amount of matter in an object
What state of matter spreads out to fill the entire space available?
Gas
What happens to the particles in an object when it is heated?
They move faster
What is the boiling point of water in degrees Fahrenheit?
212 Degrees F
What type of energy helps us hear music and voices?
Sound energy
What will happen to an object in water if it is less dense than water?
It will float
What happens when a solid turns into a liquid?
It melts
What happens to the temperature of water when you put it in a freezer?
It decreases
What is the melting point of ice in degrees Celsius?
If I hit a drum to produce a sound, what type of energy did I use?
Mechanical Energy
If you add more weight to a floating boat, what might happen?
Name a substance that can exist in all three states of matter naturally.
Water (solid as ice, liquid as water, gas as water vapor)
Why do metal spoons get hotter than plastic spoons when left in hot soup?
Metal is a better conductor of heat than plastic.
Why does butter melt on a hot pan but stay solid in the refrigerator?
The temperature in the fridge is below its melting point, but the pan is hot enough to melt it.
Kinetic energy is converted into thermal energy
Why does a big cruise ship float even though it's heavy?
It is designed to displace a large amount of water, making it buoyant.