Amazing Science VIDEO LESSON — Handwashing SCIENCE
Touching on the human microbiome and the world of microbes, this video lesson examines the science of handwashing. It includes hands-on activities that promote good handwashing techniques, using supplies commonly found in a typical home.
|AT-HOME VERSION||CLASSROOM VERSION|
Video time: 16m40s; Activity time: 20-30 min; Adult assistance time: 5-10 min.
BEFORE RUNNING THIS VIDEO
- Gather the equipment and supplies needed (listed below)
- Print the printable materials (available below)
EQUIPMENT AND SUPPLIES NEEDED
- One plate
- Two small bowls
Vegetable oil (or butter, or margarine)
- Small wedge of fruit (any kind: apple, banana, orange, etc.; or fruit juice; or fruit preserves, jam, etc.)
- Peanut Butter (if your student has a nut allergy, consider some other substance: e.g. butter or margerine, if not already used)
- Access to Dirt (garden dirt; any dirt)
Hand sanitizer (or isopropyl alcohol; or a small amount of water, with no soap)
Hand soap (or dishwashing soap)
Access to a sink
Small area on a kitchen-countertop, next to a sink.
PRINTABLE MATERIALS (Download and Print)
DOWNLOADABLE PDF (pdf; 434kb) -- Contains:
• List of items needed (with set-up diagram)
• List of Tests; with simple steps for each test
EXTENSION ACTIVITIES (OPTIONAL)
• Printable Hand-Washing Word-Search (PDF; 52kb)
• Try the same hand-washing experiments with DIFFERENT soaps! Do you have any guesses about which soap will work best; why do you think that? Which soap worked best, after testing? Consider trying each soap 2-3 times; are the results consistent?
• Handwashing Science 'Master Level' (Amazing Science extension activity — separate webpage)