Quiz # 1 - Onward We Go

Jayvyn wants to see if using different types of soil helps tomato plants grow faster. He plants three tomatoes in different types of soil and waters them every day. What should Jayvyn do to get clear results?

• Observe the plants for several weeks

• Water the plants just once

• Change the type of soil every day

• Use different pots for each plant

Answer explanation

To get clear results, Jayvyn should observe the plants for several weeks. This allows him to accurately assess the growth differences due to the soil types, rather than making hasty conclusions from short-term observations.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Mia boils water and watches how quickly it cools. After she collects all her data, what should she do next?

• Make a new guess

• Study the data to see any patterns

• Change the type of water

• Skip any more trials

Answer explanation

After collecting data, Mia should study it to identify patterns in how the water cools. This analysis is crucial for understanding the results and drawing conclusions, rather than making new guesses or changing variables.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Jack wants to see if moving away from a speaker makes the music sound softer. After writing down the volumes, what should he do next?

• Guess what happens next time

• Run more tests

• Make a conclusion based on his notes

• Change the speaker’s volume

Answer explanation

After writing down the volumes, Jack should make a conclusion based on his notes. This step allows him to analyze the data he collected and determine if moving away from the speaker indeed makes the music sound softer.

Tags

NGSS.MS-PS4-2

Lee Allen measures how high basketballs bounce in warm and cold rooms. He writes the results in a __________ so he can compare them.

• Graph

• Table

• Journal

• List

Answer explanation

Lee Allen needs to compare the bounce heights of basketballs in different temperatures. A table is the best format for organizing and comparing numerical data, making it the correct choice over a graph, journal, or list.

Vivianne bakes cookies for different amounts of time to see how it affects their texture. She uses the same recipe for each batch. After taking her notes, what should she do next?

• Make a guess

• Study the cookies and draw a conclusion

• Change the recipe

• Add more ingredients

Answer explanation

After baking the cookies, Vivianne should study them to observe the effects of baking time on texture. This analysis will help her draw a conclusion about how time influences the final product, which is the next logical step.

Mitchell tests how different shoes affect running speed. He runs several times in each pair of shoes. Why is it important to run multiple times in each shoe?

• To test new things

• To make sure his results are correct

• To form a new guess

• To use more variables

Answer explanation

Running multiple times in each shoe helps ensure the results are reliable and accurate. It accounts for variability in performance, allowing Mitchell to confirm that any differences in speed are due to the shoes, not random chance.

Tags

NGSS.MS-ETS1-4

Owen wants to see how fast different materials melt under the same lamp. After gathering his data, he notices a pattern. What should he do next?

• Change the lamp

• Do the test again

• Make a conclusion based on the pattern

• Remove some materials

Answer explanation

Owen should make a conclusion based on the pattern he observed in his data. This step allows him to analyze the results and understand how different materials respond to the same conditions, rather than changing variables.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Ashlynn tests whether different colors of light help plants grow faster. She uses red, blue, and white light, but the white light doesn’t change. What is white light called?

• Control group

• Experiment group

• Data point

• Hypothesis

Answer explanation

White light serves as the control group because it remains unchanged while Ashlynn tests the effects of red and blue light on plant growth. The control group allows for comparison to see the impact of the experimental conditions.

Tags

NGSS.MS-ETS1-1

Barron and John Paul are testing if warmer rooms melt ice faster. After writing down how long the ice takes to melt, they make a conclusion. What do we call their conclusion?

• Guess

• Inference

• Observation

• Trial

Answer explanation

Their conclusion is called an inference, as it is a logical deduction based on the data they collected about the melting ice in warmer rooms. This differs from a guess, observation, or trial.

Tags

NGSS.MS-PS3-5

Harper tests how quickly different types of chocolate melt under the same lamp. She uses this information to make a guess about how heat affects chocolate. What is her guess called?

• Law

• Hypothesis

• Observation

• Test

Answer explanation

Harper's guess about how heat affects chocolate, based on her tests, is called a hypothesis. A hypothesis is a proposed explanation that can be tested through experimentation.