Preparation for experiments 9/3/16

Choc-Chip-Cookie.jpg

SUMMARY

This week I learned how to answer a question properly. If your teacher asked you, "Why is the sky blue?" you wouldn't answer, "Because." You could say, "The sky is blue because....." instead of  "Because."  We also did an experiment this week. Mine was "Does the amount of stevia in tea affect how much a cookie disintegrates?" Here is my experiment: 

*Testable Question: Does the amount of stevia in tea affect how much the cookie disintegrates?

Hypothesis: If the amount of stevia in tea affects how much the cookie disintegrates, then ¼ teaspoon will make it disintegrate the most.

Independent Variable: Amount of stevia in tea.

Dependent Variable: Amount of disintegrated cookie.

                   Materials

• Bowls
• Cookies
• Stevia
• Teaspoon
• Tea

Instructions

Pour 80 milliliters of tea into four bowls. Into one bowl put ¼ teaspoon of stevia. In two more, put in ⅛ and 1/16. In the last, put none. Set a timer for 45 seconds. Then, dip one chocolate chip cookie into each bowl. When the timer beeps, take out the cookies and hold them over the bowls for 15 seconds. Some will drop in the bowls, and that’s okay. Then, the person with the most fallen cookie in the bowl and the least cookie in their hands has completed the experiment first. If you still have cookie in your hands, put it somewhere that is preferably not the bowls.

*: All of the things that are highlighted are important to have in a fair test. 

S&EP: SP4: Analyzing and interpreting data

This was the data table that I made after doing the experiment and obtaining the data:

    This was my Data Table.

Stevia in the tea	Cookie left
None	None
¼ teaspoon	1 centimeter
⅛ teaspoon	1 ½ centimeters
1/16	2 centimeters

We put different amounts of stevia in the tea we dipped the cookies into. The tea with no stevia disintegrated the cookie the most. I created a data table that collected the data during the experiment.