This is the 3rd planet from the sun
Earth
This force keeps us on the ground
gravity
Stomach is part of this system
digestive
We need these for paper and to make violins
trees
A thunderstorm usually involves this kind of precipitation
rain
The biggest planet in our solar system
Jupiter
Like weight, but the amount of matter in an object
mass
System of bones
skeletal
We can't live for more than a week without this
water
Giant waves that can destroy whole cities
tsunami
Next to the sun and not much fun
Mercury
Energy in motion
kinetic
Spinal cord and the brain
nervous
This rainforest--also the name of an online merchant--is being destroyed every day
amazon
It's a twister! Also known as this
tornado
Rings around this rosy planet
Saturn
Energy waiting to be released
Potential
Flex those biceps, which are part of this system
muscular
A resource can be manmade or...
natural
A huge tropical storm
hurricane
The planet between Earth and Mercury
venus
Rate at which something travels
speed
The heart and lungs
cardiovascular
The only way to earn money
work
When it hasn't rained for months
drought