Take-Home Lab Experiment Household Chemistry
Chemistry
Choose two experiments – a) and b). Include Title, Purpose, Materials, Procedure, Flowchart (including safety notes), Analysis and Conclusions IN LAB NOTEBOOK!
Include partner’s name if you work with one, and signature of parent/guardian .
INFORM YOUR PARENT/GUARDIAN OF THE EXPERIMENT BEFORE YOU BEGIN
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Purpose: To determine if a physical or a chemical change has occurred.
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Procedure: Create a suitable flowchart for your labs. Include a space for your parent/guardian to sign after you complete the lab.
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SAFETY: Work in an area where spills can easily be cleaned up and where you will not damage any surfaces. Dispose of substances one at a time in your basement sink rinsing with lots of water. Do not mix the substances as you throw them out. Throw out the plastic cups and plastic spoons. Do not eat or drink any of the substances used or produced.
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Analysis and Conclusions : For each change you observe, state whether it was chemical or physical , and explain why.
Experiment 1 . Pour vinegar (acetic acid) into baking soda (sodium bicarbonate). Record your results.
Experiment 2 . Stir rubbing alcohol (2–propanol) into water. (Do not drink this; it is poisonous).
Experiment 3 . Half fill a clear plastic soda pop bottle with water. Add vegetable oil to the water. Tightly cap the pop bottle, shake, and then let it sit. Add a few drops of food coloring to the bottle for a dramatic effect.
Experiment 4 . Boil an egg for three minutes. Let it cool, then remove the shell. Remove the shell from a raw egg for comparison.
Experiment 5
. Crush up an Alka Seltzer® (sodium bicarbonate) in a baggie using a hammer, and add it to water.
Experiment 6 . Put an egg into vinegar (acetic acid), and observe. Let it sit for 24 hours. After 24 hours, pour off the vinegar into the sink, and rinse the egg.
Experiment 7 . Add vinegar to milk. Stir and let sit for 3-4 minutes.
Experiment 8 . Dissolve epsom salts (magnesium sulfate) into water in a plastic cup. Add household ` ammonia. You have just made milk of magnesia, but don't drink it!
Experiment 9 . Peel an orange. Put a candle into your kitchen sink, and light it. Squeeze the orange peel onto the flame of the candle.
Experiment 10.
Pour a carbonated soda into a glass. Wait until the bubbles stop. Add about a teaspoon of table salt.