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Jane is investigating to find out if bean plants grow taller in ordinary topsoil or special potting soil over a three week period. She sets up her investigation with 10 bean plants of equal size in each type of soil. What should Jane do each day to make sure she gets valid results?

• Water only the plants in special potting soil.

• Calculate the average plant height for each soil type.

• Move the plants in ordinary topsoil to different locations.

• Estimate the height of each plant's stem and record the estimate.

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NGSS.MS-LS1-5

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Kevin wanted to find out which of his toy cars, the Corvette or the Mustang, would roll downhill faster. He made a ramp by putting several books under one end of a board so that the board was slanted. Which would be the best way for him to perform his experiment?

• Roll each car down the ramp separately five times and estimate which car looked faster.

• Roll both cars down the ramp together one time and see which one gets to the bottom first.

• Roll each car down the ramp separately one time, and time them with the second hand on his watch.

• Roll both cars down the ramp together five times and record which gets to the bottom first each time.

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What should they do to check their results?

• average their data

• change their lab report

• perform a new experiment

• repeat the same experiment

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NGSS.MS-ETS1-3

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The students in Miss Smith's class were using catapults to launch small and large marshmallows across the room. The table below shows the distances in centimeters (cm) that the marshmallows traveled. Which of the following statements best describes the students' data?

• Small marshmallows travel an average of 9 centimeters.

• Large marshmallows travel an average of more than 20 centimeters.

• On average, small marshmallows travel farther than large marshmallows.

• On average, large marshmallows go higher in the air than small marshmallows.

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

A prediction (hypothesis) must be testable. Which prediction (hypothesis) is testable?

• Blue is the best color.

• Summer is nicer than fall.

• Dogs are better than cats.

• A beagle can jump higher than a Persian cat.

Jasmine found a duck’s nest near the bushes beside the lake at the park on a Saturday. Jasmine wondered how long it will take for the eggs to hatch into ducklings.

What would be the BEST plan for Jasmine to use to find out the answer to her question?

• Observe the nest the following Saturday.

• Observe the nest once a day for a week.

• Observe the nest twice a day for a week.

• Observe the nest every day until the eggs hatch.

Tags

NGSS.3-LS1-1

What are meteorologists doing when they create storm tracks such as this one?

• Predicting

• Testing their ideas

• Explaining how a hurricane develops

• Gathering information to determine the strength of a hurricane

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NGSS.MS-ESS2-5

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The class is working with classes in other schools in Jacksonville to investigate the amount of rainfall in different parts of the city. Each class has the same type of rain gauge and the same type of data chart to use to record the rainfall each day.

What is another important step for all the classes to include in their procedure?

• Put the rain gauge in a grassy area at each school.

• Use the same color pen to record the rainfall data.

• Put the rain gauge next to the building at each school.

• Use the same schedule for measuring the amount of rainfall.

Alexander has a new type of liquid fertilizer for his house plants. He wonders what solution of fertilizer and water will make his plants grow the tallest?

What is the best way to investigate the question?

• look in his gardening books

• interview the local nursery owner

• take a survey of people coming out of the nursery

• do an experiment with different amounts of fertilizer solutions

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-LS2-1

Sonya wanted to know if mowing affects the health of grass during a drought. To find out, she collected data on how often her neighbors mowed their grass. Based on the information she collected, what is the BEST next step?

• Report her findings to her neighbors.

• Develop a plan to save everyone's lawns.

• Stop her neighbors from mowing their lawns.

• Find out if other things might be affecting the grass.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

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