2017 Grade 8 Intermediate-Level Science Test Questions 21-30 Question Preview (ID: 59907)

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Earth’s surface has a relatively thin, solid outer shell called the

a) atmosphere

b) lithosphere

c) mantle

d) outer core

The gravitational force between two objects is most affected by their

a) motion and volume

b) motion and distance apart

c) mass and volume

d) mass and distance apart

Approximately how many weeks will it take the Moon to move from position B to position D?

a) one

b) two

c) three

d) four

Which Moon phase will be seen from Earth when the Moon is at position C?

a) 1

b) 2

c) 3

d) 4

The change in the direction of the ray of light as it enters the water is called

a) absorption

b) reflection

c) refraction

d) transmission

Why does the Sun generally appear to rise in the east, move across the sky, and set in the west each day?

a) Earth rotates on its axis.

b) Earth revolves around the Sun.

c) The Sun rotates on its axis.

d) The Sun revolves around Earth.

Which property of a mineral is tested by scratching it on a glass plate?

a) conductivity

b) melting point

c) density

d) hardness

The inference that Earth’s interior has an outer core and an inner core is based on studies of

a) earthquake wave data

b) glacier core samples

c) recent fossil discoveries

d) celestial observations

This diagram represents the process of

a) selective breeding

b) natural selection

c) metamorphosis

d) germination

Which process results in the formation of water on the outside of a cold glass of iced tea on a warm day?

a) boiling

b) freezing

c) condensation

d) evaporation

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