8th grade Science Final Exam

Front

How many planets are in our solar system?

Back

There are 8 planets in our solar system.

Front

What is Newton's 3rd law?

Back

For every action, there is an equal and opposite reaction.

Front

How long does Earth take to orbit the sun?

Back

Earth takes one year to orbit the sun.

Front

What is Newton's 1st law of inertia about?

Back

An object in motion stays in motion and an object at rest stays at rest, unless acted upon by another force.

Front

What is the force that pulls objects down towards the center of the Earth?

Back

Gravity is the force that pulls objects down towards the center of the Earth.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What is the process of photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the water cycle?

Back

The water cycle is the continuous process by which water evaporates, condenses, and precipitates back to the Earth.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their environment.

Front

What is the difference between speed and velocity?

Back

Speed is the distance traveled per unit of time, while velocity is speed with a direction.