Share Science Space Unit
Save to Folder
Define what gravity is
The force that pulls one object toward another object
What does the Earth's gravity do to all objects?
pulls all objects to the planet's center
What makes a skydiver fall to earth?
gravity pulls the skydiver "down" or toward the Earth's center
Define what revolve means
To move around other objects
The Earth revolves around......?
The Earth revolves around sun
The moon revolves around the ......?
The moon revolves around the Earth
Do the Earth, Moon and Sun revolve around the center of our galaxy together?
Yes they do all at the same time
The sun, Earth, and moon revolve as the result of.......
gravitational force
Define gravitational force between Earth and the Moon
The force between Earth and the moon; it keeps the moon moving around the Earth
Define the gravitational force between the Earth and the Sun
Gravitational force keeps the Earth revolving around the sun
Define what a star is
A star is a ball of hot gases that gives off light and other types of energy
True or False: Stars range in size an in the amounts of light and energy they give off
True
What makes the sun appear larger and brighter than other stars in the sky
It appears larger and brighter because it is the closest star to Earth
True or False: Even stars that are bigger and brighter than the sun are visible only at night
True
Explain how the Earth's rotation can cause day
The earth rotates on its axis and half of the Earth faces the sun and it is lit by sunlight causing day
Explain how the Earth's rotation can cause night
The earth rotates on its axis and half of the Earth faces away from the sun and it is dark causing night
