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Heat

Total questions: 20

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

Without the sun's heat, what would happen to earth?

a)

aliens would invade

b)

the earth would explode

c)

it would be too cold to survive

2.

What is the earth's main source of heat?

a)

the moon

b)

the sun

c)

the ocean

d)

forests

3.

When things are hot molecules are _______.

a)

moving fast

b)

moving slow

c)

not moving

d)

not moving fast or slow

4.

When things are cold molecules are _________.

a)

moving fast

b)

moving slow

c)

not moving

d)

neither fast nor slow

5.
Heat passes from...
a)
High to low
b)
Cold to hot
c)
Hot to cold
d)
Heat cannot be passed
6.

Why do objects cool down?

a)

All heat will slowly be destroyed.

b)

The cold attacks the heat.

c)

Heat is always transferring so the heat will always move to a cooler place.

d)

The heat disappears.

7.
When you touch a cold window, how is energy being transferred?
a)
The window transfers heat to you 
b)
You transfer heat to the window
c)
The sun transfers heat to you
d)
None of the above
8.

Ice melting in a cup is caused by....

a)

the ice being heated up

b)

the ice cooling down

9.
Heat is the movement of ______.
a)
radiation
b)
thermal energy
c)
cold
d)
fire
10.
All matter is made of _____ that are constanly moving.
a)
insulators
b)
particles
c)
convection
d)
pieces of plastic
11.
The flow of thermal energy from warmer objects to cooler objects is called ______.
a)
heat
b)
movement
c)
friction
d)
energy
12.
 Ryan rubs two sticks together quickly. When he stops rubbing the sticks, he notices that they are warm to touch where he rubbed them. Which type of energy has been produced?
a)
sound energy
b)
electrical energy
c)
light energy
d)
heat energy
13.
Betty knows that different types of energy are produced by many objects around the house, such as a light bulb.
Which types of energy does the bulb give off?
a)
heat and electric
b)
light and mechanical
c)
light and heat
d)
electric and light
14.
Beth is learning about the properties of heat in science class. She knows that heat must flow to cause a change of temperature in a substance. Which of the following will cause the fastest change in temperature of an ice cube?
a)
ice cube in a pot of cold water
b)
ice cube in a pot of warm water
c)
ice cube in a pot of boiling water
d)
ice cube on a plate at room temperature
15.

When water turns into gas it is called?

a)

Water Vapor

b)

Ice

c)

Melting

16.
Water will _________ when it gets cold enough, changing it from a LIQUID to a SOLID
a)
Melt
b)
Freeze
c)
Boil
17.
When a SOLID changes to a LIQUID, it
a)
Freezes
b)
Boils
c)
Melts
18.

When an object is heated, it _______

a)

drops in temperature

b)

gains Energy

c)

Its particles slow down

19.
Which of these has the slowest moving particles
a)
Ice
b)
Lava
c)
Gas
20.

What are the the 3 states of matter?

a)

Solid, Liquid, Gas

b)

Gas, Vapour, Steam

c)

Ice, Lava, Sunlight

d)

Water, Lava, mineral

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