PHYSICAL SCIENCE

Gravity is an invisible force, but we experience it all the time. (page 7)

• TRUE

• FALSE

Whether an object is heavy or light, gravity affects it. Gravity pulls things down to Earth. (page 7)

• True

• False

Earth orbits on its axis in 25 hours.

(page 15)

• True

• False

The Earth goes around the sun in 365 (+1/4 days). (page 15)

• True

• False

There are 12 different time zones on Earth.

(page 15)

• True

• False

Tides on Earth are caused by the moon. (page 37)

• True

• False

The moon is the same size as the moon and looks the same size because it is farther from Earth. (page 37)

• True

• False

The earth has 4 "spheres": geosphere, hydrosphere, atmosphere, and biosphere.

• True

• False

The spheres are not constantly changing each other. (page 45)

• True

• False

Recycling helps all 4 spheres. (page 45)

• True

• False