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Science Lab Report

Your Name:	Janny Dang Duties Each Person Performed… Recorder Names of Lab Partner(s):	Jorge Castro	Lab Assistant Patty Espinoza	Reforcer Shawn Coupon	Researcher Title of Lab Experiment:	Woodstock Lab: The dye heaven State Standard/ Benchmark	9a: Plan and conduct a scientific investigation Date:	9/16/08	Class:	Physical Science	Period:	7

PURPOSE: What is the purpose of this lab?

The purpose is to determine the effect of detergent on milk while using and learning the scientific method.

HYPOTHESIS: (Predict the outcome(s) of the experiment; must be in an “if…then…because … format.)

My hypothesis is that the food dye would help us see the separation of the fat in the milk after we add in soap because the soap separates the milk and fat from each other like the fat on the dishes.

MATERIALS:(What equipment and materials did you need for this lab assignment? List the name and amount used of each item.

1.	Graduates Cylinder 2.	2 Beakers 3.	30ml Low fat milk 4.	30ml Whole milk 5.	1 Eye dropper 6.	1 Petri dish 7.	1 Bottle of soap (small) 8.	3 Food Colors (Blue, Green, Red)

PROCEDURE :( What steps did you take to accomplish this lab assignment? Make sure to number each step.)

1.	Measure 30ml of whole milk in the graduated cylinder, 2.	Pour the milk into the Petri dish 3.	Measure 30ml of low fat milk in the graduated cylinder. 4.	Pour the milk into the Petri dish ( Observe and record data) 5.	Place one drop of each different food color in the three ‘’corners’’ of the Petri dish (Make sure the drops do NOT touch the edges or each other.)(Observe and record data) 6.	Place one drop of dish soap off center in the Petri dish.(INSTANT observation. Record as many observations as you can.) 7.	Observe for three minutes and record your observations in the space below. (Be detailed and record your data.) 8.	Dip your toothpick in the soap and now dip the toothpick into the dish between two adjacent colors. (Observe and record your data)

DATA RECORDING: (Record the data that is required at each step of the lab: tables, charts, graphs, sketches, etc.  Be specific and as detailed as possible.)

1.	The edges of the Petri dish look whiter than the middle. 1.	My inference of the Petri dish looks whiter when you mix the two milks together. 2.	The light reflects from the top of the milk. 2.	My inference or the light reflecting the milk because it does that to any liquids. 3.	The edge of the food colors looks light and the middle looks darker. 3.	My inference of the food colors is because it doesn’t mixes with the other liquids when you don’t touch. 4.	The food colors don’t go to the bottom of the milk. 4.	My inference is the food colors is not sinking because the liquid than milk. 5.	The soap blows away the food coloring to the edges. 5.  My inference is the food blows away is because there’s a chemical reaction. 6.	The soap was moving around the Petri dish. 6.	My inference is the food coloring move around because there is a force that makes food coloring away. 7.	The soap doesn’t spread out like the food coloring. 7.	My inference that the soap doesn’t spread out is because there are chemicals holding it together. 8.	The soap dissolves for a little while. 8.	My inference is because the chemical is pushing it all together. 9.	The soap turned in a solid because the pressure of the chemical forces it together. 9.	My inference is if the soap stayed together to long and turned into a solid 10.	The soap mixes the colors around. 10. My inference is the chemicals are reacting to each other.

CONCLUSION: (Remember: Accept/Reject; Restate Hypothesis; Restate your observations; Write your inferences; Use transitions; 6-10 Sentences, Also answer any questions on your lab worksheet.)

My conclusion rejects my hypothesis. My hypothesis is the food coloring would help me see the separation of the fat in the milk. I only did see beautiful colors when it was mixed by the soap. The liquids have different reactions to each other liquid when together. In the milk the soap soon turns into a solid. The soap and the food coloring repels from each other in the milk. I really like this experiment because how food coloring, milk and soap all react to each other.