Your first lab assignment in Chemistry A is to take care of lab-related business-- the lab safety contract and finding, buying or ordering the materials you'll need starting in Week 2. This information will also be listed in your Chemistry A Resources packet (the last packet in this course) so you can find it again easily when you need it. LAB SAFETY An important first step in laboratory safety is for you and your parents to sign a contract that will help guide your steps when doing at-home science experiments. We won't require you to handle dangerous materials, but any activities involving heat, electricity, water, etc. require your conscientious participation. Please go to this web site to print out the Flinn Scientific Student Safety Contract: http://www.flinnsci.com/Documents/miscPDFs/Safety_Contract.pdf. (Be patient; the document can take a few minutes to load!) Print two copies--one to sign and mail to MNOHS, and one for your work area. Be sure to read the contract carefully before signing, and before taking this week's Lab Safety Quiz. You must sign the lab safety sheet. If you are under 18, your parents must sign it as well. Send it to:
Minnesota Online High School
Att: Ms. Raffa
University Technology Center, Suite 227
1313 Fifth Street SE
Minneapolis, MN 55414 REQUIRED MATERIALS Many weeks in Chemistry A, you will have one or more at-home lab activities. These can generally be completed using common household supplies and utensils that can be bought at your local supermarket, discount store, pharmacy, hardware store, etc. Below you will find a week-by-week list of these materials. When doing at-home lab activities, it's a good idea to wear inexpensive safety goggles. You can find these at a hobby or hardware store, or order them from Ward's Natural Science for approximately $4.00 plus $5.00 for shipping. You can order from Ward's online using a credit card or you can call their customer service number (listed on the web site) to place an order by phone and pay with a credit card or check. Do not send a check without calling first! If you have any questions about the Lab Safety Contract or lab equipment and supplies, please contact elissa.raffa@mnohs.org. Thank you! Chemistry A Lab Materials List (revised 1/19/06)
Week #
| Lab title and materials needed (note some weeks have more than one lab)
| 1
| No lab materials required. | | 2 | Bubbles! - 3 plastic drinking cups
- Liquid dish detergent
- Measuring cup and spoons
- Water
- Table sugar
- Table salt
- Drinking straw
Pendulum Lab - String
- Weights such as pennies, nails, washers to tie or tape to string
- Tape
| | 3 | Pill Bug Experiment -- online. No materials needed. | | 4 | Properties of Matter - 4 clear containers (cups)
- Half-cup measure
- Water
- Half-teaspoon measure
- Sugar
- Baking powder
- Flour
- Baking soda
- Regular spoon
- Clock or watch
Chromatography - 2 different colors of water soluble markers (MAKE SURE THEY ARE WATER SOLUBLE!)
- Coffee filter
- Metric ruler
- Clear, colorless plastic tape
- Pencil
- Clear, colorless plastic cup
| | 5 | Special Properties of Water - Penny
- Cup
- Water
- Eyedropper or toothpick
- Liquid dish soap
- Paper clip, pin, or thread
Oobleck - ½ cup of corn starch
- Container (preferably a plastic throw away one)
- Measuring spoons
- Water
- Regular fork
Ice Cream in a Bag! - Mittens or gloves
- 1 large ziplock bag (gallon size)
- 1 small ziplock bag (quart size)
- Measuring cups and measuring spoons
- 1 liter ice (4 cups)
- 60 ml salt (1/4 cup)
- 250 ml whole milk (1 cup)
- 5 ml vanilla extract (1 teaspoon)
- 30 ml sugar (2 tablespoons)
| | 6 | Vinegar and Baking Soda - Vinegar
- Baking soda
- Test tube or tall thin jar (if you have nothing like this, a coffee cup will have to do)
- Wooden matches
Peroxide and Yeast - 3% hydrogen peroxide (available over-the-counter at a drug store)
- Yeast (powdered, and not out dated)
- Test tube or tall thin jar (if you have nothing like this, a coffee cup will have to do)
- Wooden matches
Evidence of Chemical Change -- online lab. No materials needed. | | 7 | Density, Part 1 - Large pan of water, deep enough to cover a soda (pop) can
- Can of regular Coke
- Can of diet Coke
- Tall pitcher or glass of water
- Raw egg
- Salt
Density, Part 2 -- online lab. No materials needed. | | 8 | To be announced. | | 9 | Electric Charge - Clear plastic tape (four 25 cm lengths)
- Metric ruler
Build an Atom -- online lab. No materials needed. "Candium" Isotopes - 1 individual sized bag Plain M & M's
- 1 individual sized bag Peanut M & M's
- 1 individual sized bag Skittles
NOTE: Make sure the bags are the same size (check the weight). | | 10 | Observing Light Emission from Wintergreen Mints - Wintergreen mints -- (3 different brands if available)
- A pair of pliers
- Transparent tape
- A dark room
| | 11 | No lab materials required. | | 12 | Periodic Trends -- online lab. No materials needed. | | 13 | No lab materials required. | | 14 | No lab materials required. | | 15 | No lab materials required.
| | 16 | Element Name Search -- You will be reading and analyzing the ingredient labels from products such as bread, cake mixes, baking soda, cereal, soap, shampoo, conditioner, toothpaste, and antacids. You'll need to find at least six of these--at home or at the store. |
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