Review

Identify the stages of sediment movement in the diagram.

a

b

c

Erosion

Photosynthesis

Deposition

Weathering

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Over long periods of time, deposition may change the Earth’s surface by __.

• forming new land features.

• washing away beaches.

• moving topsoil.

Answer explanation

Over time, deposition leads to the accumulation of sediments, which can form new land features such as deltas, beaches, and other geological formations, making 'forming new land features' the correct choice.

Tags

NGSS.MS-ESS2-2

The Statue of Liberty is experiencing a weathering called oxidation. This is when the copper oranges change to a light blue color. This is an example of __.

• Mechanical Weathering

• Chemical Weathering

Answer explanation

The Statue of Liberty's color change due to oxidation is a chemical reaction where copper reacts with oxygen, forming a new substance. This process is classified as chemical weathering, not mechanical.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The plant roots of trees are slowly breaking down this temple. This is an example of __.

• Mechanical Weathering

• Chemical Weathering

Answer explanation

The roots of trees physically break down the temple structure without changing its chemical composition. This process is an example of Mechanical Weathering, where physical forces cause the disintegration of materials.

Tags

NGSS.MS-ESS2-2

Match the following sorting types with their descriptions.

• Sorting where layers are stacked one above the other.

• Horizontal

• Sorting where layers are arranged side by side.

• Unsorted

• Sorting characterized by inclined layers.

• Cross-bedding

• Sorting with no distinct pattern.

• Vertical

Answer explanation

The sorting described is horizontal, as it refers to layers of sediment that are deposited in a flat, even manner. This contrasts with vertical sorting, which involves different sizes settling at different depths.

Which of the following best defines displacement?

• Displacement is the total net distance an object in motion travels.

• Displacement is a measure of distance between an object's starting point and its final point of motion along with direction

• Displacement is the final trajectory of a projectile's motion.

• Displacement is the total sum magnitude of a force's inertia.

A shell is fired with a horizontal velocity in the positive x direction from the top of an 80 m high cliff. The shell strikes the ground 1330 m from the base of the cliff. The most accurate way to determine the time the projectile spends in the air is to _____.

• Use a stopwatch

• Calculate it mathematically using one of the uniform acceleration equations

• Count out loud as it falls: “1, 2, 3, …”

• None of these is accurate

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Two girls run on a track. The girls begin at the starting point (see the graph/picture below). They run 4.5 laps and then stop. What is their displacement when they stop?

• 0 m

• 100 m

• 200 m

• 1800 m

Objects that are falling toward Earth _____.

• experience a decrease in acceleration

• free-fall at a constant velocity

• experience an increase in speed

• experience an increase in acceleration

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A shell is fired with a horizontal velocity in the positive x direction from the top of an 80 m high cliff. The shell strikes the ground 1330 m from the base of the cliff.

If a second shell is dropped vertically from the same height at the same time that the first shell was fired, which of the two shells would hit the ground first?

• The first shell

• The second shell

• Both shells hit the ground at the same time

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4