McMurrer Scientific Investigation Review

Three baseball players investigate who can throw a baseball farthest. They mark off an area on the playground for their experiment. Which should they keep constant?

• Height of players

• Color of baseball thrown

• Order that players throw

• Spot from where players throw

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-2

A student designed an experiment to test the effect of light color on plant growth. What was the manipulated (independent) variable?

• Color of light bulb

• Height of plant

• Hours of light

• Size of pot

Tags

NGSS.MS-LS1-5

In an experiment, Jackson tested how the size of rocks affects the amount of dirt that washes away down a hill. What is the manipulated (independent) variable?

• Amount of water

• Slope of the hill

• Size of the rocks

• Type of dirt

Sandy is experimenting to find out which food his dog likes best. What is the manipulated (independent) variable?

• Color of the dog food dish

• The kind of food he gives the dog

• Amount of food he gives the dog

• Time of day he feeds the dog

Max is doing an experiment on tomato plants. His hypothesis is "A tomato plant will not grow in a shady area." Which of these relationships did Max base his hypothesis on?

• Warm temperatures cause plant growth

• Sunlight causes plant growth

• Tall plants cause shade

• New plants need fresh water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

To find out which soil absorbs (holds) moisture best, each container must-

• be made of a different material

• have soil from the same place

• be tested by the same person

• contain the same amount of soil

Tags

NGSS.MS-ETS1-3

What tool is used to determine the mass of an object?

• Balance

• Meter stick

• Thermometer

• Graduated cylinder

Which of these tools is used to measure mass?

• Picture A

• Picture B

• Picture C

• Picture D

Which tools are best used to determine the speed of a turtle walking on a path?

• Meter stick and graduated cylinder

• Stopwatch and meter stick

• Balance and metric ruler

• Balance and stopwatch

Which of these is an inference rather than an observation?

• This animal has hair

• This animal has a tail

• This animal is arching its back

• This animal is frightened