8th,7th,6th.
Living Ecosytems
Earth and Space Systems
Matter
Force,Motion,Work
100

This is the basic unit of life.

What is a cell?

100

This living thing makes its own food using sunlight.

What is a producer?

100

This star is at the center of our solar system.

What is the Sun?

100

This is anything that has mass and takes up space.

What is matter?

100

A push or a pull on an object.

What is a force?

200

This planet is known for its large rings made of ice and rock.

What is Saturn?

200

This term describes all the living and nonliving things interacting in an area.

What is an ecosystem?

200

This planet is known as the "Red Planet."

What is Mars?

200

Matter exists in three common states: solid, liquid, and this state.

What is gas?

200

This happens when an object's position changes over time.

What is motion?

300

This force pulls objects toward Earth.

What is gravity?

300

An organism that breaks down dead plants and animals is called this.

What is a decomposer?

300

This process moves water from Earth's surface into the atmosphere as water vapor.

What is evaporation?

300

This state of matter has a definite shape and a definite volume.

What is a solid?

300

The rate at which an object changes position is called this.

What is speed?

400

During photosynthesis, plants use sunlight, water, and this gas from the atmosphere.

What is carbon dioxide?

400

This relationship occurs when one organism benefits and the other is harmed.

What is parasitism?

400

The continuous movement of water between Earth's surface and the atmosphere is called this.

What is the water cycle?

400

In this process, a liquid changes into a gas.

What is evaporation?

400

Work is done when a force causes an object to move over this.

What is a distance?

500

This scientist developed the three laws of motion.

Who is Isaac Newton?

500

This process moves energy from producers to consumers through a series of organisms.

What is a food chain?

500

This force keeps planets in orbit around the Sun and objects on Earth's surface.

What is gravity?

500

This state of matter consists of charged particles and is commonly found in stars, including the Sun.

What is plasma?

500

According to this law, an object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.

What is Newton's First Law of Motion?