Chemistry
Space
Ecosystems
Dinosaurs
Rock Cycle
100

How many molecules of oxygen are there in H2O

1

100

The star at the center of our solar system.

The Sun

100

An organism that makes its own food through photosynthesis.

Producer

100

The Mesozoic Era is commonly known as this.

The Age of Dinosaurs

100

Magma that cools and hardens forms this type of rock.

Igneous rocks

200

The substances present before a chemical reaction begins are called these

Reactants

200

The force that keeps planets in orbit around the Sun.

Gravity

200

A group of different populations living together in an area.

Community/Biodiversity

200

This period came first in the Mesozoic Era.

Triassic Period
200

Weathering and erosion break rocks into these small pieces.

Sediments

300

This law states that matter cannot be created or destroyed during a chemical reaction.

The Law of Conservation of Mass

300

This planet is known for its large ring system.

Saturn

300

Organisms that break down dead matter are called these.

Decomposers

300

Fossils are most commonly found in this type of rock.

Sedimentary Rocks

300

Heat and pressure change existing rocks into this type of rock.

Metamorphic rocks

400

Is energy released or absorbed in an exothermic reaction?

Released

400

Earth's natural satellite.

The moon

400

The movement of energy from one organism to another is shown in this diagram.

The food chain

400

Were dinosaurs mainly believed to be reptiles or more like birds

Birds

400

The process by which sediments are squeezed together is called this.

Compaction

500

How many H atoms are there in 4C6H12O6

48

500

The path an object follows around another object in space.

An orbit

500

What is the third level consumer called in a food chain? 

The Tertiary/Apex predator/consumer

500

How long ago did dinosaurs go extinct

66 Million years ago

500

This process occurs when a rock is pulled beneath Earth's surface at a convergent plate boundary.

Subduction