ScienceSource Additional Unit Task

Unit B

Investigating Science 10

Additional Unit Task

Chemical Reactions - Home Chemical Inventory

Getting Started

You have learned that your home has many chemicals. Some products in your home, such as "green" cleaners, may be environmentally friendly. Other products may have harmful effects, especially if not used properly. In this activity, you will survey your home for chemical products and analyze your results.

Your Goal

Your goal in this unit task is to gather information for a Home Chemical Inventory. You will consider the use of hazardous products in your home, identify the safe handling, storage, and disposal of the products, and determine whether the products are acidic or basic. Then you will identify whether there are less hazardous or non-hazardous replacements for those products.



Criteria for Success

  • Your inventory should include products from all areas of your home, such as the kitchen, bathroom, bedrooms, closets, office, garage, basement, shed, and so on.
  • If any areas of your home do not include products with a home hazardous product symbol (HHPS) but do include non-hazardous alternatives, list those products as well.
  • Your teacher may instead provide a number of product labels for you to complete this activity in the classroom.

What You Need to Know

The label of each hazardous consumer product in your home should include an HHPS to alert you about any hazards associated with the product. The illustration below shows six different symbols and the symbol colours for the three levels of hazard: Danger (red octagon), Warning (yellow triangle), and Caution (orange diamond).

What You Need

  • HHPS chart (see below)
  • product labels with HHPS

Caution

Take care in handling containers at home, ensuring that the lids remain securely fastened to the containers so that no spills occur. Take extra care if products are in difficult-to-reach cupboards or areas. After examining the labels, be sure to return products to their proper storage area, so that they stay out of reach of younger family members, etc.

Home hazardous product symbols



Procedure

  1. Create a chart to record your results. You may use the following headings or other headings as directed by your teacher. Leave enough space for each product so that you can draw the symbol(s) for each product in the HHPS column.

  2. Search your home, room by room, for products to list on your chart. If the same product appears in more than one room of your home, repeat the listing for each location.
  3. Complete the location, name, use, and HHPS sections of your chart. Examine the chemical names listed on the label to determine whether the product is acidic or basic. Record your conclusion. List the chemical names that you used to determine whether the product was acidic or basic.
  4. If the product label includes information about safe handling, storage, and disposal, complete that column of the chart as well. If the label does not include the information, then research to find the information. Start your search at ScienceSource.
  5. Complete the "Alternative" column listing non-hazardous or less hazardous products that may be substituted for products that require an HHPS. For example, in some cases baking soda can be used as a general household cleaner instead of a product containing bleach. You can find more information about "green" products on-line. Start your search at ScienceSource.
  6. Create a graph of your results for each location in your home. For example, you could create a circle graph for each location and show what percentage of the products in that location were environmentally friendly, unfriendly, or unknown. Or you could create a triple bar graph for each location showing the number of products in each category.
  7. Compare your chart and graphs with those of your classmates.

Assessing Your Work

  1. Were you surprised by the number of hazardous products in your home? Explain why or why not.
  2. How was your chart similar to and different from your classmates' charts?
  3. What are some advantages of replacing hazardous products with non-hazardous products?