Actions
Earth
Pirates
Ancient Cultures
Universe
100

to make an area or substance, usually air, water, or soil, dirty or harmful to people, animals, and plants, especially by adding harmful chemicals

pollute

100

a raised part of the earth's surface, much larger than a hill, the top of which might be covered in snow

mountain

100

a device for finding direction with a needle that can move easily and that always points to magnetic north

compass

100

of or from a long time ago, having lasted for a very long time

ancient

100

the planet third in order of distance from the sun, between Venus and Mars; the world on which we live

earth

200

to separate suddenly or violently into two or more pieces, or to (cause something to) stop working by being damaged

break

200

a piece of land completely surrounded by water

island

200

a route or track between one place and another, or the direction in which something is moving

path

200

a spirit or being believed to control some part of the universe or life and often worshipped for doing so, or something that represents this spirit or being

god

200

the sun and the group of planets that move around it

solar system

300

to complain about someone or something in an annoyed way

grumble

300

damage caused to water, air, etc. by harmful substances or waste

pollution

300

very valuable things, usually in the form of a store of precious metals, precious stones, or money

treasure

300

a female god

goddess

300

a device for making objects that are far away look closer and larger, using a combination of lenses, or lenses and curved mirrors

telescope

400

to slide without intending to

slip

400

tropical forest

jungle

400

a tool consisting of a wide, square metal or plastic blade, usually with slightly raised sides, attached to a handle, for moving loose material such as sand, coal, or snow

shovel

400

an ancient story or set of stories, especially explaining the early history of a group of people or about natural events and facts

myth

400

someone who studies, teaches, or is an expert in mathematics

mathematician

500

to fall quickly and without control

tumble

500

a large area of water surrounded by land

lake

500

a large boat for travelling on water, especially across the sea

ship

500

a building used for the worship of a god or gods in some religions

temple

500

the area above the earth, in which clouds, the sun, etc. can be seen

sky

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