The planet closest to the Sun.
Mercury
Plants produce this during photosynthesis.
oxygen
Force that causes a change in motion.
unbalanced force
The star closest to our planet.
Sun
Light bouncing off an object.
reflection
The planets in order from the Sun
Mercury,Venus,Earth,Mars, Jupiter, Saturn, Uranus, Neptune
An organism that makes it's own food.
producer
A push or a pull that changes the motion of an object.
force
The path one object takes around another object in space.
orbit
Light bending
refraction
These are found between mars and Jupiter
asteroids
A characteristic that helps an organism survive .
an adaptation?
A force that causes a spring scale to show weight of an object.
gravity
takes about 365 days.
Earth's revolution around the Sun
Materials that do not let light pass through them.
opaque
The four gas giants
Jupiter, Saturn, Uranus, and Neptune
A green food-producing molecule that helps plants make their own food.
chlorophyll
The measure of distance an object moves in a given time.
speed
This takes about 27 days.
moon's revolution around the Earth
For a sound to happen, a medium is needed to do this.
vibrate
The four rocky planets
Mercury, Venus, Earth, and Mars
A network of overlapping food chains in an ecosystem.
food web
A force that opposes motion and acts between 2 objects that are touching.
friction
the Earth does this in a 24 hour period.
rotate on it's axis
A form of radiant energy that can travel through space.
light