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Particles and Matter Liquids and Gases Forces: Gravity Simple Machines Heat Energy
100
Particles
What are tiny pieces of matter called?
100
to freeze
What does it mean to lose heat energy?
100
gravity
______ is a force that pulls everything down to the earth.
100
tools that make it easier for people to do work
What are simple machines?
100
Heat energy
_________ is energy that makes things feel warm.
200
Mass
_______ is how many particles are in something.
200
changes from solid to liquid
What does it mean to gain heat energy?
200
weight
More mass = more _________
200
1. Lever and fulcrum
2. ramp
3. wheel and axle
4. pulley
Name the four types of simple machines
200
fire, blankets, lights
What are some sources of heat?
300
Volume
_________ is how much space something takes up.
300
evaporation
______ is when water changes to gas and floats up into the air.
300
friction
_______ is a force that makes everything slow down and stop
300
a bar balanced on a point. We use them to lift heavy things, or as a scale.
What is a lever? Why do we use them?
300
wood, coal, and oil
Name three fuels we use for heat
400
Density
_______ is how close together the particles are.
400
condense
________ is when water changes from a gas back to a liquid, and falls down toward earth.
400
rough
What makes more friction? A smooth surface or a rough surface?
400
We use them to move heavy things up. It can be flat or stairs.
What do ramps look like? Why do we use them?
400
faster
When something has more heat energy, the particles are moving (faster/slower).
500
Sink goes under water, float means lay on top.
What do sink and float mean?
500
vapor
Another word for liquids turning into a gas
500
to help us move without falling
Why is friction important?
500
doorknobs, pencil sharpeners, wheels on car/bus
Name a wheel and axle you use everyday.
500
Conductors let heat move easily through them. One conductor is metal. We use metal to cook things on the stove.
Insulators do not let heat pass through easily. Such as rubber mittens when cooking so we do not burn ourselves on the hot metal.
What are conductors and insulators? Give an example of each.




ESL 3 Physical Science

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