Experimental Investigations Review

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?

What tool should Anthony use to measure how much time it takes for the sugar to dissolve?

• ruler

• stopwatch

• triple beam balance

• thermometer

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?

Multiple answers!!! Which things should Anthony keep the same in his experiment?

• the amount of water

• the size of the sugar cubes

• the temperature of the water

Xavier’s team designed an experiment to answer the following question. How does the surface of a ramp affect how far a toy car rolls? Which factor should Xavier change in the experiment?

• the kind of car

• the height of the ramp

• the surface of the ramp

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

Xavier’s team designed an experiment to answer the following question. How does the surface of a ramp affect how far a toy car rolls? Which factor should Xavier keep the same in the experiment?

• the kind of car

• the height of the ramp

• the surface of the ramp

Tags

NGSS.MS-ETS1-1

Melika made a model to help understand why craters on the moon are different sizes. She represented the moon’s surface with a pan of flour. Melika represented objects that hit the moon with marbles. She thinks that dropping marbles from a greater height will make the crater’s diameter larger.

What should she change in her experiment to test her hypothesis?

• the weight of the marbles

• the kind of flour in the pan

• the height she drops the marbles from

• the size of the marbles

Tags

NGSS.MS-ESS2-2

NGSS.MS-ETS1-1

NGSS.MS-PS2-2

Melika made a model to help understand why craters on the moon are different sizes. She represented the moon’s surface with a pan of flour. Melika represented objects that hit the moon with marbles. She thinks that dropping marbles from a greater height will make the crater’s diameter larger. What should she keep the same in her experiment?

• the weight of the marbles

• the kind of flour in the pan

• the height she drops the marbles from

• the size of the marbles

Tags

NGSS.MS-PS2-2

Devon thinks wrapping a cotton towel around a jar of hot water will keep it warmer than without any wrapping at all. He is designing an experiment to determine whether construction paper, a paper towel, a cotton towel, or no wrapping at all will keep the water in the jar warmer.

What tool does he need to use to test the temperature of the water?

• graduated cylinder

• beaker

• thermometer

• triple beam balance

Tags

NGSS.MS-PS3-4

Ben observed that puddles outside seem to disappear more quickly when it is a sunny day. He decided to test this by setting up an experiment in which he placed a graduated cylinder with 10 ml of water in a dark closet and a graduated cylinder with 10 ml of water by the window. Each day he measured the amount of water. What did Ben change in this experiment?

• the amount of sunlight on the water

• the amount of water in the cup

• the kind of cup

Tags

NGSS.MS-ESS2-4

Ben observed that puddles outside seem to disappear more quickly when it is a sunny day. He decided to test this by setting up an experiment in which he placed a graduated cylinder with 10 ml of water in a dark closet and a graduated cylinder with 10 ml of water by the window. Each day he measured the amount of water. What did Ben keep the same in this experiment?

• the amount of sunlight on the water

• the amount of water in the cup

• the kind of cup

Tags

NGSS.MS-ESS2-4

Another name for an educated guess?

• Hypothesis

• Good guess

• Scientific method

• Scientific notation.