Exploring Our Solar System: Read-Aloud Insights

What is at the center of every planetary system?

• An asteroid

• A planet

• A comet

• A star

Approximately how old is our solar system?

• About 45 billion years

• About 450 million years

• About 4.5 billion years

• About 4.5 million years

What is the primary composition of the sun?

• Liquid lava

• Ice and dust

• Solid rock

• Gaseous mass

Which planet is closest to the sun?

• Mercury

• Mars

• Venus

• Earth

What is the main reason Pluto was reclassified as a dwarf planet?

• It is too far from the sun

• It hasn't cleared its orbit of debris

• It does not have moons

• It is too large

Tags

CCSS.RI.1.5

CCSS.RI.3.5

CCSS.RI.4.5

CCSS.RI.2.5

CCSS.RI.5.5

How many moons does Earth have?

• Two

• One

• None

• Four

Which planet has the shortest orbital period around the sun?

• Mercury

• Neptune

• Earth

• Jupiter

Which of the following is not a characteristic of a gas giant?

• Larger than terrestrial planets

• Has a rocky surface

• Primarily composed of gas

• Has multiple moons

What is the largest object in the asteroid belt?

• Mars

• Jupiter

• Ceres

• Pluto

What distinguishes a comet from asteroids and meteoroids?

• It is made of rock

• It has a tail of gas and dust

• It orbits the Earth

• It is the largest object in space