Raj makes paper airplane models. He flies them to help him understand how real airplanes fly. What can Raj learn about real airplanes from his models?

• how flying through clouds affects airplanes

• how flying very high can affect airplanes

• how well different airplane designs can fly

• how different types of paper make airplanes fly better

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Alan wants to make a bridge across the creek behind his house. To find out which design holds the most weight, he makes paper models. How can he BEST gather evidence about how well each model works?

• He can blow on each model until it falls.

• He can place quarters on each model until it falls.

• He can place science books on each model until it falls.

• He can push down on the middle of each model until it falls.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

Which unit of measurement would you use to record the MASS of a worm?

• grams

• millimeters

• centimeters

• inches

A class is investigating what kinds of living things are found in pond water. Which tool would the class use to place a drop of water on a microscope slide?

• pan balance

• graduated cylinder

• dropper

• measuring tape

Mark has an apple, a walnut, and a grape. He needs to measure the MASS of each one. Which tool will he use?

• measuring tape

• hand lens

• pan balance

• microscope

Alicia and Dwayne won the school science fair for their project about cleaning up water pollution. During their investigation, they made observations about the levels of pollution in the water. What tool did they use so that they could look closely at the water?

• dropper

• thermometer

• microscope

• stopwatch

Janice is studying rocks. She thinks to herself that the rock is light in color and has a bumpy surface. This is an example of an

• observation

• inference

Janice is studying rocks. She noticed the holes throughout the rock and thinks to herself that this rock was formed by hot magma that then cooled down. This is an example of an

• observation

• inference