Section 2: Science Concepts

Earth completes one full ______ every 24 hours.

• rotation

• revolution

• orbit

• cycle

Our ______ change because Earth tilts on its axis.

• seasons

• days

• months

• weeks

The Moon goes through different ______ about once every 29 days.

• phases

• stages

• cycles

• patterns

Write the word or words that make the statement correct. Jupiter ______ the Sun.

• orbits

• revolves

• rotates

• circles

If it is exactly noon on one side of Earth, it is ______ on the opposite side.

• midnight

• dawn

• noon

• evening

We receive heat and light from the ______.

• Sun

• Moon

• Stars

• Earth

When the North Pole slants away from the Sun, it is ______ in the northern part of Earth.

• winter

• summer

• spring

• autumn

The Sun is high overhead during ______.

• summer

• winter

• autumn

• spring

As Earth rotates, we see the Sun ______ in the east.

• rise

• set

• move

• disappear

The Sun’s rays are strong at the ______ and weaker at the poles.

• equator

• tropics

• hemisphere

• arctic