Spongebob Scientific Method Part 2

Spongebob Scientific Method Part 2

Going back to Bikini Bottom!

Multiple Choice

What is an INDEPENDENT variable?

• The variable I intentionally change

• The variable I measure (data)

• The group I use to compare

• The things I keep the same

Multiple Choice

What is a DEPENDENT variable?

• The variable I intentionally change

• The variable I measure (data)

• The group I use to compare

• The things I keep the same

Multiple Choice

What is a CONTROL?

• The variable I intentionally change

• The variable I measure (data)

• The group I use to compare

• The things I keep the same

Multiple Choice

What is a CONSTANT?

• The variable I intentionally change

• The variable I measure (data)

• The group I use to compare

• The things I keep the same

Multiple Choice

What is a HYPOTHESIS?

• An educated guess

• The data and observations

• The steps needed to conduct an experiment

• Drawing a conclusion from the data

Multiple Choice

How do we usually write a hypothesis?

• If (independent variable) then (dependent variable)

• If (dependent variable) then (dependent variable)

• If (independent variable) then (constant)

• If (constant) then (dependent variable)

Multiple Choice

Which of these is NOT a step in the scientific method?

• Develop a hypothesis

• Analyze the results

• Identify a problem

• Go to the gym

Bad Breath!

Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating krabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a krabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich, but it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the krabby patties, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating krabby patties.

Open Ended

What would be a good hypothesis for this experiment? (Remember- a hypothesis is usually written as an "if...then" statement.)

Multiple Choice

What was the INDEPENDENT variable in the breath mint experiment?

• The type of mint

• The number of people with fresh breath

• Two hours

• 100 customers

Multiple Choice

What was the DEPENDENT variable in the breath mint experiment?

• The type of mint

• The number of people with fresh breath

• Two hours

• 100 customers

Multiple Choice

Which group was the control?

• Group A (who got the special mints)

• Group B (who didn't get the special mints)

• All of them (100 customers)

• There wasn't one.

Open Ended

If 30 of the 50 customers who got the improved mints reported better breath, and 10 of the 50 customers who didn't get the improved mints reported better breath, what conclusion can Mr. Ktrabs come to?

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 Barg'N-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.

Open Ended

What would be a good hypothesis for Spongebob?

Multiple Choice

What is the INDEPENDENT variable in the laundry experiment?

• The Clean-O Detergent

• The pants were washed 3 times each

• How clean the pants were

• How dirty the pants started

Multiple Choice

What is the DEPENDENT variable in the laundry experiment?

• The Clean-O Detergent

• The pants were washed 3 times each

• How clean the pants were

• How dirty the pants started

Multiple Choice

Based on the available data, did Clean-O work?

• Yes

• No

Squidward Symphony

Squidward loves playing his clarinet and believes it attracts more jellyfish than any other instrument he has played. In order to test his hypothesis, Squidward played a song on his clarinet for a total of 5 minutes and counted the number of jellyfish he saw in his front yard. He played the song a total of 3 times on his clarinet and repeated the experiment using a flute and a guitar. He also recorded the number of jellyfish he observed when he was not playing an instrument. 

Open Ended

Write Squidward's hypothesis in your own words. (Remember- a hypothesis is usually an "if...then" statement.)

Multiple Choice

What was the INDEPENDENT variable?

• The instrument he played

• The song he played

• The number of jellyfish that came

• 5 minutes

Multiple Choice

What was the DEPENDENT variable?

• The instrument he played

• The song he played

• The number of jellyfish that came

• 5 minutes

Here is Squidward's data

Draw a conclusion to Squidward's hypothesis that the clarinet draws the most number of jelly fish.

You're going to write it on the next slide.

Open Ended

Squidward's hypothesis is that the clarinet is the best instrument for attracting jellyfish. Does the data support that hypothesis? EXPLAIN.

Super Bubbles

Patrick and Spongebob love to blow bubbles! Patrick found some Super Bubble Soap at Sail-Mart. The ads claim that Super Bubble Soap will produce bubbles that are twice as big as bubbles made with regular bubble soap. Patrick and SpongeBob made up two samples of bubble solution. One sample was made with 5 oz. of Super Bubble Soap and 5 oz. of water, while the other was made with 5 oz. of regular bubble soap and 5 oz. of water. Patrick and SpongeBob used their favorite bubble wands to blow 10 different bubbles and did their best to measure the diameter of each one.

Open Ended

What would be a good hypothesis for Spongebob and Patrick?

Multiple Select

Find all the CONSTANTS?

• Type of bubble solution

• Size of the bubble

• Bubble wand used

• 5 oz of water

Multiple Choice

What is the INDEPENDENT variable?

• Type of bubble solution

• Size of the bubble

• Bubble wand used

• 5 oz of water

Multiple Choice

What is the DEPENDENT variable?

• Type of bubble solution

• Size of the bubble

• Bubble wand used

• 5 oz of water