8th Grade Science STAAR Review!

In which galaxy do we live in?

• Andromeda Galaxy

• Milky Way Galaxy

• Triangulum Galaxy

• Whirlpool Galaxy

All waves transport energy from one location to another _____________________________.

• without transporting matter.

• by moving particles along with the energy.

• through a medium that carries matter.

• by creating a vacuum in the surrounding area.

The gravitational pull of the moon has a greater effect than the gravitational pull of the Sun on Earth's tides. This is because _______________________.

• the Moon is closer to Earth.

• the Sun is much larger than the Moon.

• the Earth's rotation affects the Moon's pull.

• the Moon has a stronger gravitational force than the Sun.

The crust and the top of the mantle are called the _____________________________.

• lithosphere

• asthenosphere

• mantle

• core

What do closely spaced contour lines on a topographic map indicate?

• The land is flat and has no elevation change.

• The change in elevation is rapid and the slope of the land is steep.

• The area is waterlogged and has poor drainage.

• The elevation is constant across the area.

Which wavelengths of the electromagnetic spectrum are shorter than visible light and carry more energy?

• violet

• ultraviolet

• red

• infrared

A scientist is attempting to classify a large object in space that is in orbit around Jupiter. The object is most likely a __________________.

• planet

• moon

• asteroid

• comet

The point on Earth's surface where the greatest energy from the earthquake is released is ______________________________________.

• the epicenter

• the focus

• the fault line

• the seismic wave

Almost 600 years ago, European rabbits were introduced to the Canary Islands. Now, the Canary Island rabbits are so different in size, eye color, and ear shape that they are considered separate species. This is explained through ____________________________.

• adaptation

• mutation

• variation

• migration

Earth's ocean tides are caused by the _____________________.

• gravitational attraction of the moon and the Sun

• rotation of the Earth

• wind patterns across the ocean

• the Earth's distance from the Sun