SPACE
The Moon is made of ___ oxygen.
What is 43%?
Consumers gain energy by eating other ___.
What is organisms?
A force that requires 2 pieces of matter to touch.
What is contact force?
When all of the colors of visible light are mixed.
What is white light?
Everything has ____.
What is mass?
Moon gravity pulls the Earths ____.
What is water?
All living and non-living this in an area make up an ____.
What is ecosystem?
The force that results when 2 materials rub against each other or when their contact prevents sliding.
What is friction?
More frequency = ____.
What is higher pitch?
Invisible force that comes from a planet that pulls bodies down to Earth's surface.
Stars are giant balls of ____.
What is hot gas?
____ uses the Sun's energy to create their own food.
What is producers?
The force of attraction between any 2 objects.
What is gravity?
When sound wave reaches a border and bounces back.
What is echo?
___ ______ is a type of friction when air particles touch a surface.
What is air resistance?
Two of the terrestrial planets are ____ and ____.
What is Mercury, Earth, Venus, or Mars?
The ___ provides all the energy for the food chain.
What is sun?
When light hits an object and bends at an angle.
What is refraction?
Sound energy is measured in ____.
What is hertz?
Force that is being applied to a surface or an object.
What is pressure?
The sun has ___ and ___.
What is spots and layers?
A collection of overlapping food chains in an ecosystem Is a ____ ___.
What is food web?
The tendency of an object to resist any change in motion.
What is inertia?
Light moves in straight lines but light can change ____ when it hits an ____.
A force that attracts and repulses force between particles is _____.
What is electrostatic?