A
True or false: All matter has mass and takes up space.
True
What instrument is used to measure temperature?
Thermometer
Which container of water evaporated the fastest? Why?
The shallow dish evaporated the fastest because it had a greater surface area.
True or false: molecules in a gas move slower than molecules in a solid.
False
Which ice cream melted the fastest? The largest piece, the smaller chunks, or the large chunk that we added heat to?
The large chunk that we added heat to because the more heat, the faster the change happens from solid to liquid.
What is mass?
What are the three states of matter?
Solid, liquid, and gas
What is room temperature in Celcius?
20 Degrees C
What does taking away heat do to the molecules in a substance?
It makes the molecules slow down and move closer together.
What is volume?
The amount of space matter takes up.
Molecules move the fastest in this state of matter.
Gas
What temperature does water freeze in Celcius?
Heat causes molecules in a solid to ______ faster.
a) move or vibrate
b) freeze
c) condense
What does heat do to the molecules in a substance?
It makes them move faster and expand.
What two states of matter are fluid? (Can move or flow)
Liquid and Gas
Molecules move the slowest in this state of matter.
Solid
What is it called when a substance changes from a liquid to a solid?
Freezing
What temperature does water boil in Celcius?
100 Degrees C
What is it called when a substance changes from a gas to a liquid?
Condensation
This type of change causes a substance to look different, but the chemical formula stays the same.
Physical or Chemical Change?
Physical Change
This type of change causes new substances to be formed and the chemical formulas change.
Physical Change or Chemical Change?
Chemical Change
What is it called when a substance changes from a solid to a liquid?
What are three ways to make water evaporate more quickly?
Moving air, more surface area, and warmer temperature
Vaporizating