Mid sem assessment -Grade 7

Which of the following best describes a synthetic material?

• Petroleum is refined through a chemical process to produce plastic that is carved into a figure

• . A tree is cut down, carved into a shape, then burned to add color

• Sand is struck by lightning causing it to turn into glass that is then carved into a figure.

• Volcanic glass (obsidian) is carved and polished into a sculpture

Tags

NGSS.MS-PS1-3

Information on the raw materials required to produce four synthetic materials is provided. The production of which of the listed materials would require growing plants?

• Nylon

• Glass

• Fibres

• Paper

What is the difference between a natural and synthetic material?

• Natural material is made from chemicals and synthetic is made from nature

• Natural material is made directly from nature and synthetic material is made from chemicals

• Natural material is made from petroleum and synthetic material is made from wool

• Natural material is made from trees and synthetic materials are made from plastics.

Tags

NGSS.MS-PS1-3

Read the following statements. Select each answer choice that is a true statement about synthetic materials. Please select 4 answers.

• Synthetic materials are made from natural resources.

• Synthetic materials are made by chemically changing natural resources to create a material with different characteristics.

• Some examples of synthetic materials are plastics, medicines, and new fuels.

• Making and using synthetic materials have both positive and negative impacts on society.

• A synthetic substance cannot be chemically identical to a naturally-occurring substance.

Tags

NGSS.MS-PS1-3

When looking at the shape of the continental shelves that surround South America and Africa, it can be observed that the continental shelves fit together. This observation is used to support the idea that –

• The continental shelves of these two continents are made of the same type of rock material.

  .

• The tectonic plates beneath these continents are roughly the same age.

• These continents were joined in the past and have moved apart since that time.

• The material that makes up these two continental shelves comes from sediments eroded from the continents.

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

_______________ are formed as a result of continent-continent collision, or convergence.

• Faults

• Rift

• Mountains

• Mid-ocean ridges

Tags

NGSS.MS-ESS2-2

The Alpine Fault cuts through New Zealand. At this location, two plates are sliding past each other slowly over time. Identify the boundary that exists at Alpine Fault.?

• Divergent

• Transform

• Convergent.

• All of the above

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Why most Earth quakes occur at tectonic plate boundaries?

• . Very little stress builds up along the plates.

• There is little or no movement of rocks.

• Large amount of stress builds up as plate move.

• Most faults occur in middle of plates.

Tags

NGSS.MS-ESS2-3

Plate tectonics is our current theory of how the movement of continental masses relates to the movement of ocean basins. This movement explains many phenomena , such as .....

• Earthquakes.

• Volcanoes

• Weather patterns

• All of the above

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Observe the picture and explain the process that makes the Earths tectonic plate move

• Volcanic eruptions.

• Earthquakes

• Convection in mantle

• Mountain forming

Tags

NGSS.MS-ESS2-3