4th Grade Science Review Units 1 through 3

4th Science Review Units 1 through 3

Review

Multiple Choice

What are the states of matter?

• solid, liquid, and juice
• solid and liquid
• solid and gas
• solid, liquid, and gas

Multiple Choice

Does this thing float or sink?

• Float

• Sink

Multiple Choice

Which object will float?

Multiple Choice

Toothpicks are less dense than water. As a result, what would happen when placed in water?

• They would sink
• They would float
• They would dissolve
• They are not less dense

Multiple Choice

Objects that are denser than water

• float

• sink

Multiple Choice

Which one will not attracted to a magnet?

Multiple Choice

Objects that not attracted to a magnet is called?

• magnetic

• non magnetic

• magnetism

• magnetic field

Multiple Choice

Lots of things we use have magnets inside them. Magnet can be found in these objects, except:

Mixtures and Solutions

Review

Multiple Choice

A combination of two or more substances where each keep their own properties

• Mixture
• Solution
• Substance
• Particles

Multiple Choice

Is pizza a mixture or a solution?

• Mixture
• Solution

Multiple Choice

Is soda a mixture or a solution?

• Mixture
• Solution

Multiple Choice

The image shown is an example of a ___________.

• solution
• mixture
• gas
• plasma

Multiple Choice

Can a mixture be separated? 

• No
• Yes
• Only sometimes

Multiple Choice

A mixture of one substance dissolved evenly in another

• Solution
• Mixture
• Lemonade
• Substance

Multiple Choice

The image shown is an example of a ________.

• solution
• mixture
• suspension

Multiple Choice

Solutions are formed when one or more substances dissolve in another.

• True
• False

Forms of Energy

Review

Multiple Choice

All of the following forms of energy are used or produced after a lamp is turned on EXCEPT

• electrical energy

• light energy

• mechanical energy

• thermal energy

Multiple Choice

What forms of energy does the sun give off?

• sound and thermal

• electrical and light

• thermal and light

• thermal and mechanical

Multiple Choice

Thermal energy is another name for heat energy?

• True 
• False

Multiple Choice

Which of the following provides light energy?

• flashlight
• radio
• bicycle
• headphones

Multiple Choice

When you pull a door open, what type of energy is being used?

• light energy
• sound energy
• mechanical energy
• heat energy

Multiple Choice

Which of the following can work as an energy source?

• Battery
  
• Light bulb
• Wire
  
• All of them

Electricy and Circuits

Review

Multiple Choice

This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -

• the switch gives energy to the battery
• the buzzer is made of special plastic
• the wires are cooled by the surrounding air
• electricity can flow in a complete path

Multiple Choice

Which of the following materials is an electrical conductor?

• Plastic spoon

• Silver-colored plastic spoon

• copper spoon

• wooden spoon

Multiple Choice

Which form of energy is produced when a lamp is switched on?

• Sound energy
• Electrical energy
• Chemical energy
• Light energy

Multiple Choice

What is a good conductor of electricity?

• Rubber Ball

• Glass Cup

• Penny

• Plastic Spoon

Multiple Choice

If an electric circuit is left open, 

• Electricity will flow
• Electricity will not flow
• Electricity will flow and then stop