Life Science
Space Science
Physical Science
Chemistry
Earth Science
100
The process by which plants make their own food.

What is photosynthesis?

100

This force keeps planets in orbit around the Sun.

What is gravity?

100
This type of energy is stored energy.

What is potential energy?

100

This is the smallest unit of matter.

What is an atom?

100

These are the three main types of rock.

What are igneous, sedimentary, and metamorphic?

200

The process by which living things make energy (and release carbon dioxide and water).

What is cellular respiration?

200

This is the path an object takes as it moves around another object in space.

What is orbit?

200

This causes an object to move.

What is an unbalanced force? (force = a push or a pull)

200

This type of change forms a new substance.

What is a chemical change?

200

This process breaks down rocks into smaller pieces or sediment.

What is weathering?
300

The organelle where all genetic information is stored.

What is the nucleus?

300

This phase occurs when the Moon is completely illuminated as seen from Earth.

What is a full moon?

300

This happens when energy is transferred through vibrations in matter.

What is sound?

300

This subatomic particle has a negative charge.

What is an electron?

300

This layer of Earth is made of molten rock and moves slowly via convection currents.

What is the mantle?

400

Name at least two organelles that are only found in plant cells and not animal cells.

What are chloroplasts, cell wall, and/or central vacuole.

400
List these objects from smallest to largest: planet/star, universe, galaxy, solar system 

What is planet/star, solar system, galaxy, universe

400

This force opposes/resists motion.

What is friction?

400

This substance is made of two or more elements chemically combined.

What is a compound?

400

These boundaries occur where tectonic plates move away from each other.

What are divergent boundaries?

500

These are the levels of organization of living things (from simplest to most complex).

What are cells, tissues, organs, organ systems, organism?

500

This is the visible surface of the Sun.

What is the photosphere?

500

The speed of an object that traveled 20 meters in 2 seconds. You must say the correct units to get the points. (hint: speed = distance/time)

What is 10m/s?

500

This scale measures how acidic or basic a substance is.

What is the pH scale?

500

This process moves sediment from one place to another.

What is erosion?