The Planets
Ecosystems
Digestive
Solar System
Circulatory
100

The planet closest to the Sun.

What is Mercury?

100

Plants produce these 2 things during photosynthesis.

What are oxygen and glucose (sugar)?

100

This helps food move down the esophogus easily.  

What is an saliva?

100

The star closest to our planet.

What is the Sun?

100

The main organ of the circulatory system. 

What is the heart?

200

The planets in order from the Sun

What is Mercury,Venus,Earth,Mars, Jupiter, Saturn, Uranus, Neptune

200

An organism that makes it's own food.

What is a producer?

200

The digestive system absorbs these from food.  

What are nutrients?

200

The path one object takes around another object in space.

What is an orbit?

200

These carry blood to the heart. 

What are veins?

300

These are found between Mars and Jupiter.

What are asteroids?

300

A characteristic that helps an organism survive .

What is an adaptation?

300

A chemical that helps digest food.  

What is an enzyme?

300

One of these takes about 365 days.

What is Earth's revolution around the Sun?

300

These carry oxygen-rich blood away from the heart. 

What are arteries?

400

The four gas giants

What are Jupiter, Saturn, Uranus, and Neptune?

400

A green food-producing molecule that helps plants make their own food.

What is chlorophyll?

400

The remaining and unneeded product of the digestive process.  

What is waste?

400

This takes about 27 days.

What is the moon's revolution around the Earth?

400

The heart is about this size. 

What is your fist?

500

The four rocky planets

What are Mercury, Venus, Earth, and Mars?

500

A network of overlapping food chains in an ecosystem.

What is a food web?

500

Where food is reduced to a liquid form. 

What is the stomach?

500

The Earth does this in a 24 hour period.

What is rotate on it's axis?

500

The smallest blood vessels. 

What are capillaries?