Final Exam Study Guide (all standards)

Natural Resources are the base materials for synthetic materials.

• True
• False

Tags

NGSS.MS-PS1-3

How are synthetic materials are made?

• by chemically changing a material to something new with different characteristics
• by physically changing a material so something that looks different.
• they are not made, they are found in nature
• by heating the natural materials to 1000 degrees C

Tags

NGSS.MS-PS1-3

Bubble Wrap is an example of a ___________________ material.

• natural
• synthetic
• sustainable
• renewable

Tags

NGSS.MS-PS1-3

Making and using synthetic materials has_________________________________ impacts on society.

• positive
• negative
• both positive and negative
• neither positive or negative (neutral)

Tags

NGSS.MS-PS1-3

In a chemical reaction the temperature of the product was lower (decreased) than the temperature of the reactants. What type of reaction was this?

• endothermic
• exothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When endothermic chemical reactions occur, chemical bonds are _____________ in the reactants and new chemical bonds are ________________ to make products.

• broken, formed
• formed, broken
• exothermic, endothermic
• endothermic, exothermic

Tags

NGSS.HS-PS1-4

If temperature of products is greater than the temperature of the reactants did the chemical reaction absorb or release heat?

• absorb heat
• release heat
• Neither
• Both

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

If temperature of products is less than the temperature of the reactants did the chemical reaction absorb or release heat.

• absorb heat
• release heat
• Neither
• Both

Tags

NGSS.MS-PS1-4

When chemical energy transforms into thermal energy, what happens?

• temperature decreases
• temperature increases
• temperature stays the same
• energy is absorbed

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When thermal energy is released during a chemical reaction, what type of reaction is that?

• exothermic
• endothermic
• internal
• chemical

Tags

NGSS.MS-PS1-6