LEAP Review Stations Part 1 (Atoms/Molecules/Heat)

Graphite and diamond are both made of carbon but their properties are very different as can be seen in the picture. If they're made of the same thing, why do they have such different properties?

• They have different molecular structures.

• The carbon atoms in graphite have less protons which makes it softer.

• The carbon atoms in diamond have more protons which make it stronger.

• Graphite is made up of dark carbon atoms.

Tags

NGSS.MS-PS1-1

Matter can exist in many states. Matthew observed the same substance in several different forms at different temperatures. Which diagram shows the substance at the highest temperature?

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Tags

NGSS.MS-PS1-4

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Tags

NGSS.MS-PS1-1

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Tags

NGSS.MS-PS1-1

A student creates a ball-and-stick model to represent the atomic scale of a substance. Which of these best describes the model?

• 1 molecule with 10 atoms

• 1 element with 10 molecules

• 10 molecules representing 10 elements

• 10 elements representing 10 molecules

Tags

NGSS.MS-PS1-1

The translucent material between teh matches and flame is aerogel which is a synthetic material that is generally an excellent insulator. How was it most likely produced?

• checmically processing raw materials

• mined out of the ground and forged into shape

• it was found in nature and cleaned off

• magnetically mixing air and gel together

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NGSS.MS-PS1-3

Based on the information obtained, what does Isabella communicate to her friend about the materials?

• Synthetic materials can be reused and recycled to have less of an imapct on the environment.

• Synthethic materials are better for the environment because they do not use up renewable natural resources.

• Synthetic materials can cause more harm to the environment than natural materials but will be less expensive to purchase.

• Synthetic materials are engineered by people to have no chemical reactions and to mimic the same properties as natural materials.

Tags

NGSS.MS-ESS3-4

NGSS.MS-PS1-3

What represents "A"?

• hydrogen

• helium

• oxygen

Tags

NGSS.MS-PS1-1

What represents "B"?

• hydrogen

• helium

• oxygen

Tags

NGSS.MS-PS1-1

What represents "C"?

• oxygen

• helium

• hydrogen

Tags

NGSS.MS-PS1-1