Solar System

The four inner planets are...

• Rocky and small

• Very large and made of ice

• Small and made of ice

• Very large and made of gases

The outer planets are...

• Rocky and small

• Very large and made of ice

• Small and made of ice

• Very large and made of gases

Why is space travel difficult for people?

• We cannot take the air or food we need into space

• the distance are very great; it is dangerous and expensive.

• It is impossible to escape the sun's or Earth's gravity.

• We do not have a destination to visit that we know will support life.

What holds the planets in their orbits around the sun?

• gravity

• speed

• string

• air currents

The first planet of the solar system?

• Sun

• Venus

• Earth

• Mercury

What is the thing that makes the planets orbit

• Jupiter

• Neptune

• Sun

• God

The hottest planet is 

• Venus

• Earth

• Mercury

• Mars

The largest planet is

• Jupiter

• Saturn

• Neptune

• Pluto

The fourth planet is

• Venus

• Earth

• Mars

• Jupiter

Anthony claims that the patterns of stars in the sky only appear to move, but the patterns do not change. Which piece(s) of evidence would best support this claim?

• observations that some stars can be seen in every season

• Observing satellites at night moving across the sky

• Observations that different stars appear in different seasons, but the patterns of the stars remain the same.