Energy Matter& Change

Conduction requires

• Electricity

• the electromagnetic spectrum and particles

• air or water flow

• direct contact

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

The movement of fluids due to the uneven heating like in a lava lamp is called

• rip currents

• counter currents

• convection currents

• artificial movements

Tags

NGSS.MS-ESS2-6

You get sunburned due to __________ from the sun.

• conduction

• convection

• radiation

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following are examples of heat transfer. Choose ALL that apply!

• radiation

• convection

• conduction

Tags

NGSS.MS-PS1-4

?

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-2

A pot of water is brought to a boil until all the water is changed to water vapor.

Which of the following describes the changes in the water molecules? Choose 2 answers.

• The molecules slow down

• The molecules speed up

• The molecules move farther apart

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A teacher adds a compound to a flask filled with water. The teacher notices that a reaction occurs and the water temperature decreases quickly. Which of these statements are true about this reaction? Choose 2 answers.

• This reaction is an example of an endothermic reaction.

• When the compound and water mixes, a decomposition reaction takes place.

• This is an example of a chemical reaction in which heat is added from its environment.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS1-2

How is this increased speed, or kinetic energy in molecules measured?

• calculating the distance they traveled in a particular amount of time

• change in temperature of the substance is determined

• counting the number of bonds broken, and comparing that to the number of particles present

• the particles are too small, and any changes cannot be mesaured

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What are some characteristics of endothermic and exothermic reactions? Choose ALL that apply!

• In an exothermic reaction, heat is released

• Endothermic reactions are cooler

• Exothermic reactions are warmer

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Photosynthesis & melting are examples of __________. Choose 2 answers.

• endothermic reactions

• exothermic reactions

• CaCl2 (s)+ H2O (l) -> Ca (aq) + Cl (aq) + energy

• the burning of sugar

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3