How many hearts does a human have?
1
What force pull objects towards the Earth?
Gravity
What energy relates to electricity?
Electrical energy
When a liquid is changed to a solid it is called?
Freezing
Name the two gasses we breathe in and out.
O2 (oxygen) and CO2 (carbon dioxide)
Which bones protects the lungs?
Ribcage

What type of force is this a picture of?
Static electricity
Give an example of sound energy
...
When a solid changes to a liquid it is called?
Melting
What is the third planet from the sun?
Earth
How many kidneys do humans have?
2

What simple machine is pictured above?
lever / see saw
True or False. Thermal energy is also known as heat energy.
True
When a liquid changes to a gas it is called?
Evaporation
Ture or False:
True
What is the largest organ in the body?
The skin
Mass is usually measured in
Kilograms
What is kinetic energy?
Energy possessed by a body due to its motion.
Key word: motion, moving
When gas changes to a liquid it is called?
Condensation
How do plants get energy?
Photosynthesis
Your respiratory system helps you
Breathe
What does a magnetic field look like?
It's invisible.
A wind turbine converts _____ energy to _____ energy.
wind/mechanical energy to electrical energy
What is it called when a ice cube becomes water
Melting
What is animal that eats meat called?
Carnivore