Grade 8 Science - Unit 5

Front

Compared to Earth, Mercury rotates on its axis very slowly. What can you conclude about Mercury?

Back

The length of a day on Mercury is much longer than Earth.

Front

Arrange the objects based on increasing weight of a 1 kg mass: Earth, Jupiter, Mars, Moon, Sun.

Back

Moon, Mars, Earth, Jupiter, Sun

Front

A “year” on Earth is 365.26 days long. A “year” on Saturn lasts over 29 times longer than Earth. Which of the following best explains this difference between the two planets? Options: A. Saturn is farther from the Sun than Earth., B. Saturn rotates on its axis faster than Earth., C. Saturn has greater gravitational force than Earth., D. Saturn revolves around the Sun faster than Earth.

Back

Saturn is farther from the Sun than Earth.

Front

A new planet is discovered in a different solar system. The new planet is much like Earth. One difference is that the planet does not have seasons. What feature of Earth is lacking from the new planet?

Back

Earth has a tilted axis.

Front

Which diagram shows an alignment in which spring tide takes place? Options: A, B, C, D

Back

A

Front

According to the diagram below, which of the following factors keeps Earth in motion around the sun? Options: Speed, Mass, Gravity, Friction

Back

Gravity

Front

The four balls in the diagram below are made of the same material and are solid.

Back

True

Front

Which image best represents a portion of the heliocentric model of the solar system? (S=Sun, E=Earth, and M=Moon)

Back

a

Front

Which season would be experienced in the Northern Hemisphere at this time?

Back

Spring

Front

How should Kevin position Earth, the Moon, and the Sun to show a New Moon?

Back

With the Moon between Earth and the Sun.