Variables and Replication and Repetition Quiz

Daniel is a scientist. Daniel is investigating different fuel sources for cars in the future. He conducts three trials and records his data. What is this an example of?

• Repetition

• Replication

• Summarizing

• Conclusions

Jill loves bubble gum and decides that bubblicious is the best at blowing the biggest bubbles. Jill did an experiment with different brands of gum where she blew 5 bubbles and recorded her data. Her data did not support her hypothesis so she asked her friend Dave to follow her procedures and check her results. This is an example of what?

• Repetition

• Replication

• Summarizing

• Conclusion

Haleigh wants to see which type of footballs have the best grips. She buys 5 different footballs and catches them 5 times each. What is this an example of?

• Repetition

• Replication

• Summarizing

• Conclusion

Tags

NGSS.MS-ETS1-3

Why is replication important to have in science?

• Replication allows for data to be collect with multiple trials

• Replication allows only one person to redo work to make sure it is valid

• Repetition allows for others to test another's work to make sure it is valid

• Replication allows for others to test another's work to make sure it is valid

For her science fair project, Maya asks the following question: "I see that some recipes for bubble blowing solution have glycerin and others do not. I want to blow the largest bubbles possible. How does adding glycerin to my bubble blowing solution change the size of the bubbles I can blow with it?" What is Maya’s test variable?

• The size of her bubble wand

• The size of the bubble blown

• The amount of glycerin added to the bubble blowing solution

• The brand of dish detergent used to make the bubble blowing solution

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS1-2

In an experiment determining plant growth under different light conditions, what is the outcome variable?

• Plant Growth

• Type of Plant

• Type of Light

• Amount of Water

Tags

NGSS.MS-LS1-5

What is an outcome variable?

• The variable that is changed

• The variable that is measured

• The variable that stays the same

• The variable that does not get what's being tested

Billy wants to be a pro gamer. To make sure he has the best equipment he performs an experiment. He buys 3 different controllers and plays with each controller for 2 hours a day for 5 days. He measured his score as the rating for the controller. What is the test variable?

• Type of controller

• Score on the game

• Type of game played

• Time of day he played

Jim did an experiment to see the effect different amounts of sunlight have on plant growth. He used the same type of plant, gave each plant the same amount of water and put it in the same type of fertilizer for 10 days and recorded the plants height. Which is an example of a constant variable?

• Height of plant

• Amount of sunlight

• Same type of fertilizer

• Different amounts of water

What is a control group?

• It is the group you measure to collect for data

• It is the group that does not get the test variable

• The one thing you change in an experiment on purpose

• It is the factors that stay the same throughout the experiment