Mixing Substances Chemical Changes Inertia Pressure Electricity
100
Chemistry
A kind of science that studies what things are made of.
100
Physical change
This type of change is when an object's shape is changed by bending, folding, tearing, or breaking.
100
by itself
An object at rest will not start moving ___________.
100
weight
On the earth, matter has _________
100
energy
Electricity is a kind of ___________.
200
substance
A single kind of matter is called a __________.
200
Chemical change
This type of change is when an object changes into a new type of matter.
200
Contact forces
This type of force occurs when two objects touch.
200
pressure
The forces pushing in on an object is called __________.
200
power plant
A factory that makes electricity is called a ____________.
300
faster
Things dissolve _________ in hot water than in cold water.
300
burning
An example of a fast chemical change is __________.
300
same speed
An object in motion wants to stay moving at the _____________.
300
particles
Gravity pulls down on all the _____________ in an object.
300
Closed Circuit
This type of circuit is when electricity flows from its source around in a circle, and back to its source.
400
A solution
What do you make when you dissolve one substance into another?
400
rusting
this chemical change happens when iron, water, and oxygen mix together.
400
harder
It is ________ to stop a heavy moving object.
400
no pressure
There is no air in outer space so there is __________.
400
An electrical device
This object changes electricity into another form of energy.
500
An egg
What can make oil and water mix?
500
carbon dioxide
Fire uses oxygen and makes __________________.
500
outer space
Where can objects move in a straight line forever?
500
They live under 8 km of water.
How deep in the ocean do snailfish live?
500
plastic
Which insulator are wires usually covered in?






Physical Science

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