Scenario 1 - Patty Power

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce body gas associated with eating crabby patties from the Krusty Krab. He finds 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with the regular sauce. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and only 6 customers in group B reported having fewer gas problems.

What would be a good testable question for Mr. Krabbs?

• Does adding Mr. Krabb's new sauce affect the number of people who get gas?

• Does the amount of people who get gas affect adding special sauce ?

Tags

NGSS.MS-ETS1-3

Scenario 1 - Patty Power

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce body gas associated with eating crabby patties from the Krusty Krab. He finds 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with the regular sauce. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and only 6 customers in group B reported having fewer gas problems.

What is the independent variable?

• the regular sauce

• the new sauce

• crabby patties

Scenario 1 - Patty Power

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce body gas associated with eating crabby patties from the Krusty Krab. He finds 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with the regular sauce. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and only 6 customers in group B reported having fewer gas problems.

What is the dependent variable?

• number of people with less gas

• the new sauce

• the crabby patties

Scenario 1 - Patty Power

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce body gas associated with eating crabby patties from the Krusty Krab. He finds 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with the regular sauce. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and only 6 customers in group B reported having fewer gas problems.

What should Mr. Krabbs' conclusion be?

• The new sauce works

• The new sauce doesn't work

• The data is inconclusive (no conclusion can be made)

Tags

NGSS.MS-ETS1-3

Scenario 1 - Patty Power

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce body gas associated with eating crabby patties from the Krusty Krab. He finds 100 customers with a history of gas problems. He has 50 of them (Group A) eat crabby patties with the new sauce. The other 50 (Group B) eat crabby patties with the regular sauce. Both groups were told that they were getting the sauce that would reduce gas production. Two hours after eating the crabby patties, 30 customers in group A reported having fewer gas problems and only 6 customers in group B reported having fewer gas problems.

Which group is the control group?

• Group A

• Group B

Scenario 2 - SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

What is Spongebob's hypothesis?

• Does using Clean-O detergent affect how clean my clothes will be?

• I think that using Clean-O detergent will make my clothes cleaner because Sandy told me it worked well.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Scenario 2 - SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

What is Spongebob's independent variable?

• The amount of dirt on his pants

• Clean-O detergent

• His pants

Scenario 2 - SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

What is the dependent variable?

• The amount of dirt on his pants

• Clean-O detergent

• His pants

Scenario 2 - SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

What should Sponge Bob’s conclusion be?

• Clean-O detergent works better than the plain water.

• Clean-O detergent doesn't seem to work any better than the plain water.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Scenario 2 - SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

Does Spongebob's investigation include a control?

• Yes, the pants washed without the Clean-O soap

• No, he needs to have pants that are not washed

• Yes, the pants washed with the Clean-O soap