top of page

Handwashing: Which works best? Soap vs. Sanitizer

An At-Home STEM Lesson Plan Crafted by BGCHarlem STEM Specialist Chaelee Dalton

Photo: Center for Disease Control


Coronavirus. COVID-19. Lately, I’m sure you’ve heard a lot about Coronavirus. With all the news and rumors, what do you need to know about Coronavirus?

This lesson, and the ones to follow, explore several different Coronavirus topics i.e. handwashing to help you and your child understand the science and math behind coronavirus and how to make sure your community stays safe! If your child cannot read, read the text out loud to them. Ask them the questions and have them respond and/ or solve on a separate sheet of paper. If you child can read, simply give them the second page of this handout and have them read the text out loud or in their head. Materials: Blank paper, pen or pencil, internet access/YouTube

Addresses Common Core Standards: CCSS.MATH.CONTENT.1.MD.A.1 CCSS.MATH.CONTENT.5.MD.A.1 CCSS.MATH.CONTENT.5.OA.B.3 Addresses NGSS Standards: 2-PS1-1 3-LS4-3 5-PS1-1 5-PS1-4


Handwashing:Which works best? Soap vs. Sanitizer

Look at the images. What do you see? Which hands glow the most? Which hands glow the least? What does the glowing represent?

On a separate piece of paper, write down two things that you see. For older kids, explain why. Why do you think those hands glow the most, the least?

1. __________________________________________________

2. __________________________________________________

The glowing represents germs on the hand! While you cannot see germs on your hands, scientists invented a gel called “Glo-Gel” that looks like germs that can only be seen under a special kind of light, a black light.

On a separate piece of paper, write down which method is the best to get rid of germs.

_____________________________ is the best way to get rid of germs. I know

(No hand washing, hand sanitizer, or washed hands)

because ______________________________________________________


Watch this clip to further explain. Question: How long should you wash your hands? Why? Should you never use hand sanitizer?


Special thanks to our #STEMMondays partners:

Follow BGCHarlem social media channels for daily updates. And students we would love to see your work!

Be sure to upload a picture of yourself with your completed lessons using the hashtag #BGCHarlem.  




View our additional 'Resources For Students & Parents for Dealing with COVID-19' HERE

bottom of page