The bottle top is held in place using which simple machine?

• wheel and axle

• wedge

• screw

• inclined plane

Firefighter use many tools to help people in need. What is the firefighter using to help open this car door?

• Inclined plane

• Screwdriver

• Wedge

• Lever

Our Earth exist in a galaxy called _________

• Milky way

• black hole

• irregular galaxy

• eliptical galaxy

Coal, oil and natural gas are non-renewable resources called

• fossil fuel

• resources

• fossil

• energy

To use a resource wisely and help to prevent waste is called ____________

• Conservation

• Renewable Energy

• Solar

• Hydroelectric

How long is one Earth’s rotation?

• 24 hours

• 24 months

• 24 days

• 365 days

Two surfaces rubbing together is called

• friction

• air resistance

• gravity

• water resistance

Two examples of a pulley are...

• 
• 
• 
• 

Tools and machines make our lives_______

• easy

• hard

• funny

• difficult

How are moons different from planets?

• moons orbit planets

• moons orbit stars

• planets make their own light

• moons are larger than planets