The Planets
Ecosystems
Force
Solar System
Light/ Sound
100

The planet closest to the Sun.

Mercury

100

Plants produce this during photosynthesis.

oxygen

100

Force that causes a change in motion.

 unbalanced force

100

The star closest to our planet.

 Sun

100

Light bouncing off an object.

reflection

200

The planets in order from the Sun

Mercury,Venus,Earth,Mars, Jupiter, Saturn, Uranus, Neptune

200

An organism that makes it's own food.

producer

200

A push or a pull that changes the motion of an object.

force

200

The path one object takes around another object in space.

orbit

200

Light bending

refraction

300

These are found between mars and Jupiter

asteroids

300

A characteristic that helps an organism survive .

 an adaptation?

300

A force that causes a spring scale to show weight of an object.

 gravity

300

takes about 365 days.

 Earth's revolution around the Sun

300

Materials that do not let light pass through them.

opaque

400

The four gas giants

Jupiter, Saturn, Uranus, and Neptune

400

A green food-producing molecule that helps plants make their own food.

chlorophyll

400

The measure of distance an object moves in a given time.

speed

400

This takes about 27 days.

moon's revolution around the Earth

400

For a sound to happen, a medium is needed to do this.

vibrate

500

The four rocky planets

Mercury, Venus, Earth, and Mars

500

A network of overlapping food chains in an ecosystem.

 food web

500

A force that opposes motion and acts between 2 objects that are touching.

 friction

500

the Earth does this in a 24 hour period.

rotate on it's axis

500

A form of radiant energy that can travel through space.

light

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