Preview · Year-8 vocabulary

From before recorded history; from before writing was invented.

A mountain that throws up lava, ash, and gas through an opening.

The set of bones that hold a body up.

A measure of how hot or cold something is.

To rot or break down slowly; the process of rotting.

The time when daylight is fading, just before night.

The layer of gases around a planet; the mood or feel of a place.

Movement; the act of moving.

A person trained to travel into space.

A measuring system or graded series; also the small hard plates on a fish.

Not bright; faint or hard to see.

A large body of matter that travels around a star.

The force that pulls things toward the centre of Earth (or any large body).

The imaginary line around the middle of the Earth, halfway between the poles.

The science of stars, planets, and space.

A tube with lenses or mirrors used to see far-away things up close.

All of space, with every star, planet, and galaxy in it.

The straight-line distance across a circle through its centre.

One step in a series; a unit of temperature, angle, or rank.

A bowl-shaped hole, often left by a meteor or by a volcano.

To throw back light or sound; to think carefully about something.

A book of maps.

Material burned to produce heat or power, such as wood, coal, or petrol.

A person whose job is to dig coal or minerals from underground.

A cold-blooded reptile with four legs and a long tail.

A young tree, thin and only a few years old.

To soak up; to take in.

A heavy weight that holds a boat in place; to hold something steady.

A home for bees, where they live together and store honey.

A large building where goods are made, often with machines.

The line where two pieces of cloth are sewn together; a thin layer of rock or coal.

A high, steep face of rock, often by the sea.

A very large rock.

A smooth round gem grown inside an oyster.

Low land that lies between hills or mountains.

A substance that flows and takes the shape of its container, like water.

The main stem of a tree; an elephant's nose; a large storage box; the body apart from head and limbs.

(expression) to launch into the sky, especially a rocket leaving Earth.

(expression) to think carefully about something, especially something past.

(expression) moving; underway, no longer still.