Ecosystems
Food Chains
Random
Matter
Solar System
100

Living and nonliving things living together

What is an ecosystem?

100

The arrows in a food chain/food web show the following.

What is the transfer of erergy?

100

Organisms who live in the deepest part of the ocean need this to survive in extreme darkness.

What is light?

100

Anything that has mass or takes up space.

What is matter?

100

The smallest planet in the solar system.

What is Mercury?

200

If a population decreases, it will affect this.

What is a food chain/food web?

200

An organisms role in their ecosystem.

What is niche?

200

This stays the same throughout the experiment.

What is a constant?

200

The 3 states of Matter.

What is solid, liquid, and gas?

200

The largest planet in the Solar System.

What is Jupiter?

300

All of the energy in an ecosystem comes from here.

What is the sun?

300

Organisms at the bottom of a food chain/food web are called this.

What is a producer?

300

This happens when plants lose their leaves.

What is they can not make food?

300

When a substance completely dissolves into another.

What is a solution?

300

This planet/star is in the center of the Solar System.

What is the Sun?

400

When two organisms depend on the same food, they must do this to survive.

What is compete?

400

Bacteria, fungi, vultures, and worms are examples of this category of organisms.

What is a decomposer?

400

Animals breathe this out. 

What is carbon dioxide?

400

When matter changes from one state to the next, the mass does this.

What is stays the same?

400

The Earth revolves around the Sun, and this floating rock revolves around the Earth.

What is the Moon?
500

This helps meet the following needs of organisms: food, water, shelter, and space.

What is a habitat?

500

Scientist use this to classify organisms using their physical features.

What is a dichotomous key?

500

This is changed by the experimenter.

What is the independent variable?

500

Water changing to gas.

What is evaporation?

500

Earth does this around their axis every 24 hours.

What is rotate?