NC 5 G 3

A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?

• The mass of the balloon increases because the size of the balloon has increased.

• The mass of the balloon increases because the temperature of the balloon has increased.

• The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.

• The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?

• The heat from the fire travels through the ground and heats the ground around the people.

• The heat from the fire is conducted through air molecules to the people.

• The heat from the fire rises in the air and then settles around the people.

• The heat from the fire radiates from the fire to the people.

Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature? 

• convection 

• evaporation 

• radiation 

• conduction 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What can cause a moving object to increase its speed in a forward direction?

• a force pushing on the object from the opposite direction

• a force that continually acts on the object in the direction the object is moving

• an increase in the mass of the object

• a decrease in the mass of the object

Tags

NGSS.MS-PS2-2

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Conduct experiment

Ask a question

Communicate results

Draw conclusions

Analyze results

Tags

NGSS.MS-PS2-2

A student uses a rubber band to launch the four objects shown in the table.
Object Mass
 paper clip 0.5 gram
piece of paper 1 gram
eraser 2 grams
rubber ball 10 grams
If the student pulls the rubber band back the same amount each time, which object will most likely move the fastest when launched?

• paper clip 

• piece of paper 

• eraser

• rubber ball 

Tags

NGSS.MS-PS2-2

After a rain, a puddle of water remains on a sidewalk. After a day of sunshine, the puddle is gone. Which process is most responsible for the disappearance of the puddle?

• precipitation 

• transpiration

• evaporation

• condensation 

Tags

NGSS.MS-ESS2-4

On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?

• stormy 

• sunny 

• snowy 

• hot 

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which best describes a characteristic of the jet stream?

• It forms a boundary between a cold air mass and a warm air mass. 

• It creates the high winds around the eye of a hurricane.  

• It forces the hot air along the equator to rise to areas in North America. 

• It causes high pressure air masses to rotate clockwise.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is a compound?

• a pure substance

• a mix of all things

• made up of two or more elements that are chemically combined

• an element that has luster

Tags

NGSS.MS-PS1-1