Second Grade Solar System Unit

Question 1

Without_______ to hold us down, we would float away into the sky.

Accepted Answer

gravity

Question 2

Without ________ from the sun, Earth would have no people,plants or animals.

Accepted Answer

Energy

Question 3

The moon’s gravity is _________ than the Earth because it is smaller.

Accepted Answer

less than

Question 4

The sun is a _______ because it is a body of gases that makes its own light and heat.

Accepted Answer

star

Question 5

The sun, the moon, and the eight planets is called the_____________________.

Accepted Answer

solar system

Question 6

American astronauts work for an agency called _____________.

Accepted Answer

NASA

Question 7

When we are talking about the sun, we sometimes use the term__________________.

Accepted Answer

solar

Question 8

The Earth ________around the sun one time each year.

Accepted Answer

revolves

Question 9

Due to asteroids, the moon has several holes or ___________on its surface.

Accepted Answer

craters

Question 10

Who was the first man on the moon?

Accepted Answer

Neil Armstrong

Question 11

Each day, the earth spins around once making a complete_________.

Accepted Answer

Rotation

Question 12

When the light shining on the moon increases, it is called__________.

Accepted Answer

waxing

Question 13

What is at the center of our solar system?

Accepted Answer

The Sun

Question 14

How many days are in a lunar cycle?

Accepted Answer

28

Question 15

Rocks that orbit the sun and sometimes crash into the moon are called ___________________.

Accepted Answer

Asteroids

Questions 15