1
How many planets are in our solar system
8
When is the shadow of an object the shortest?
noon or when the sun is at its highest point
Define rotation and revolution.
Rotation: An object spinning on it's axis
Revolution: The movement of an object around another object.
What has to happen for an object to change states of matter?
Heat must be added or taken away.
What is the source of all energy in the solar system?
The sun
Write out the planets in order.
Mercury, Venus, Earth, Mars, Jupiter, Saturn,Uranus, Neptune
How long does it take for the earth to rotate?
24 hours
What object in our solar system has the most mass?
The Sun
How many months have 28 days?
12
What is a circuit?
The path an electric current flows on.
What elements are the sun made out of?
Hydrogen and Helium.
Why do objects in space appear to move through the sky throughout the day?
Because of the rotation of the Earth.
How many times will Earth rotate during 1 complete revolution around the sun?
365 times
What patterns of Earth do rotation and revolution cause?
Rotation: Day and Night
Revolution: The seasons
What tool is used to measure the force needed to lift an object?
Spring Scale
What are the two main differences between the inner and outer planets?
size and composition
Orbiting around the Earth.
what are the 4 forces that can act on an object?
Friction, Resistance, Gravity and Magnetisim
What are the six different simple machines?
Lever, inclined plane, wheel and axel, pulley, screw, and wedge.
How often do tides occur?
Twice a day
What three things do the Sun, Earth, and Moon have in common with each other?
They are spheres, rotate and have gravity.
Draw and Lable the moon phases
What three things are the reasons for Earth's seasons?
Earth's shape, Earth's tilt, and the path of revolution.
How long does it take for the moon to revolve around the Earth?
28 days
If you go outside on December 18th and saw a first-quarter moon, what phase of the moon would you most likely see on December 25th?
A full moon