8th Science Exam Review 2024

Front

What is a meteor?

Back

A meteor is a small rock or particle from space that burns up upon entering Earth's atmosphere, creating a bright streak of light in the sky.

Front

What happens when a bar magnet is broken?

Back

Each piece becomes a separate magnet with its own north and south poles.

Front

What is the unit of measurement for wave frequency?

Back

Hertz (Hz) is the unit used to measure wave frequency.

Front

What causes temperature differences between regions like Alaska and Texas in winter?

Back

The tilt of Earth during winter results in Alaska receiving less direct sunlight compared to Texas.

Front

What type of galaxy is the Milky Way?

Back

The Milky Way is classified as a spiral galaxy.

Front

What is a comet?

Back

A comet is an icy body in space that, when close to the sun, heats up and releases gases, forming a glowing coma and sometimes a tail.

Front

What is an asteroid?

Back

An asteroid is a small rocky body that orbits the sun, primarily found in the asteroid belt between Mars and Jupiter.

Front

What is a meteorite?

Back

A meteorite is a solid fragment of a meteoroid that survives its passage through the atmosphere and lands on Earth.

Front

What are the two poles of a magnet?

Back

The two poles of a magnet are the north pole and the south pole, which create a magnetic field.

Front

What is sound wave frequency?

Back

Sound wave frequency refers to the number of waves that pass a point in one second, measured in Hertz.