SpongeBob+Experiments+1

Experimental design terms to help you: Controlled variable- variables that are kept the same Manipulated variable: the factor the experimenter changes/ most experiments should only have one Responding variable: is the factor that is measured or observed to change/ the change depends on the independent variable Control subjects or group- are used as a comparison and are not experimented on. Experimental subjects or groups- experience the manipulated variable.



__Flower Power __

SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertilizer to see if will help plants produce more flowers. He plants two plants of the same size in separate containers with the same amount of potting soil. He places one plant in a sunny window and waters it every day with fertilized water. He places the other plant on a shelf in a closet and waters it with plain water every other day.

 1A. The manipulate variable is...  1B. The responding variable is... (Write a hypothesis for this experiment.)  1C. Hypothesis: ......................... <span style="font-family: Arial,sans-serif; font-size: 14pt;"> 1D. Variables kept the same are... <span style="font-family: Arial,sans-serif; font-size: 14pt;"> 1E. The plant getting plain water is the… (Used for comparison) <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">(What variables were not kept the same or not controlled?) <span style="font-family: Arial,sans-serif; font-size: 14pt;"> 1F. The variables not controlled are… <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">(Think about how to fix the Flower Power experiment.) <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;"> __<span style="font-family: Arial,sans-serif; font-size: 14pt;">Super Snails __ <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">Gary is not the smartest snail in Bikini Bottom and believes he can improve his brain power by eating Super Snail Snacks. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">In order to test this hypothesis, he recruits SpongeBob and several snail friends to help him with the experiment. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">The snails ate one snack with each meal every day for three weeks. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">SpongeBob created a test and gave it to the snails before they started eating the snacks as well as after three weeks. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;"> <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">2A. The manipulate variable is... <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">2B. The responding variable is... <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">2C. Hypothesis: ......................... <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">(How could this experiment be improved? How could a comparison be included in the experiment?) <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">2D. Add a control snail that gets ….. snacks. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">(Does the data support the hypothesis/ do the Super Snail Snacks work?) <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">2E. Most of the snails showed …………, so the snacks …………….. work. <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">2F. Results produced by beliefs or expectations are called the placebo effect. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">(Do you think Gary's improved score was due to the placebo effect?)

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<span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">Bubble Time

<span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">Patrick loves bubble gum and would like to be able to blow bigger bubbles than anyone else in Bikini Bottom. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">To prepare for the Bikini Bottom Big Bubble Contest, he bought five different brands of bubble gum and <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;"> needs your help to find the brand that creates the biggest bubbles. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">Write an experiment to test the bubble power of the bubble gum brands and help Patrick win the contest. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">You get to pick the brands of bubble gum being tested.

<span style="font-family: Arial,sans-serif; font-size: 14pt;"> 3A. The manipulate variable is... <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">3B. The responding variable is... <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">3C. Hypothesis: ......................... <span style="font-family: Arial,sans-serif; font-size: 14pt; line-height: 1.5;">3D. The …. are compared, so they act kind of like controls. <span style="font-family: Arial,sans-serif; font-size: 14pt;">3E. <span style="color: #000080; font-family: Arial,sans-serif; font-size: 14pt;">Write an experiment to test which brand produces the biggest bubble.