A-E
F-J
K-O
P-T
U-Z
100
Seasons are caused by the tilt of the Earth on this. (Starts with A.)
What is its axis?
100
This is the largest planet in the solar system. It is a gas giant.
What is Jupiter?
100
This is a producer (or plant) that grows in the ocean. (Starts with K.)
What is kelp?
100
Water that falls to earth as rain, sleet, snow, or hail. (Starts with P.)
What is precipitation.
100
Primary consumers that get their energy from grass and start with "Z".
What are zebras?
200
A weather tool used to measure air pressure. (Starts with B.)
What is a barometer? 
200
This term that starts with "F" shows the path of energy from one organism to another.
What is a food chain?
200
This type of water is surrounded by land. (Starts with L.)
What is a lake? 
200
We have day and night because the Earth does this. (Starts with R.)
What is rotates?
200
This river that starts with "Y" is an important part of the Chesapeake Bay watershed.
What is the York River?
300
This type of cloud is larger and darker. It may produce thunderstorms. (Starts with C.)
What are cumulonimbus clouds?
300
On a weather map, this "H" symbol indicates dry weather. 
What is high pressure?
300
The smallest terrestrial planet. (Starts with M.)
What is Mercury?
300
The planets do this around the sun. (Starts with R.)
What is revolve?
300
Earth's sister planet. Just a little smaller than Earth.
What is Venus?
400
Information in number form. Could be shown in charts or graphs. (Starts with D.)
What is data?
400
This current flows along the east coast of the United States. (Starts with G.)
What is the Gulf Stream? 
400
The farthest planet from the sun.
What is Neptune?
400
These moons.
What are first and third quarter moons?
400
This gas giant spins on its side.
What is Uranus.
500
This word that starts with "E" means all the living and nonliving things that are part of an environment.
What is an ecosystem?
500
In a science experiment, this is the part that I, the scientist, can change.
What is an independent variable?
500
In a scientific investigation, this is something you hear, feel, taste, or smell. (Starts with "O".)
What is an observation?
500
Caused by the gravitational pull of the Moon on the Earth. (Starts with T.)
What are tides?
500
This kind of address tells us which bodies of water will collect the rain that falls on our home. (Starts with W.)
What is a watershed address?