Earth
Matter
Ecosystems
100
What causes day and night?
Rotation
100
What is everything made of?
Matter
100
What is the original source of energy in a food chain/food web
sun/sunlight
200
When the earth is facing the sun, what does that mean?
It is daytime
200
What is the smallest piece of matter?
atoms
200
what is the purpose of photosynthesis?
to help plants grow/ for plants to make food/ to give plants energy
300
What causes us to see different stars at different times of year?
Revolution
300
what do different combinations of atoms make?
molecules
300
what do arrows in a food chain or food web represent?
energy trasnsfer
400
How long does it take the Earth to revolve around the sun?
365 days, 1 year, 12 months
400
Which phase of matter has the fastest moving particles?
Gas molecules
400
which of these is the producer?
Plant
500
What does the Earth rotate on?
Its axis
500
draw the phases of matter in a solid, liquid, and gas
500
what is the original source of food molecules in a food chain/food web
producers