facebook
1%
Processing, please wait...
It was processed successfully!
It was processed successfully!
Login Create Free Account
Create Free Account
language
Oops! It looks like your security settings are blocking this video 🙁

If you are on a school computer or network, ask your tech person to whitelist these URLs:
*.wistia.com, fast.wistia.com, fast.wistia.net, embedwistia-a.akamaihd.net

Sometimes a simple refresh solves this issue. If you need further help, contact us.

 

Bacteria & Viruses Activity for Kids

Grow Mold DIY

  • Duration: 20 min
  • Difficulty: Easy
  • Cost: $0 to $10

Learn how to grow mold!

Visit The Full Lesson Download Instructions as PDF

Material List

  • 2Slices of bread
  • 2Sealable plastic bags
  • 1Roll of tape
  • 1Marker
  • 1Spray bottle

Instructions

  • 1Spray 3 squirts of water on each slice of bread.
  • 2Write “COOL” on one bag, and “WARM” on the other.
  • 3Add the pieces of bread to each bag.
  • 4Close the bags and tape the seals airtight.
  • 5Put the bag labeled “COOL” in the fridge.
  • 6Put the bag labeled “WARM” somewhere warm and dark, like a kitchen cupboard.
  • 7Let the bags sit there for 1 week then observe!
  • 8When done keep the bag sealed and throw it away.
  • CautionAdult supervision is suggested.

How It Works

Like bacteria, fungi are also microbes. Fungi include yeast, mushrooms, and mold. Cold temperatures slow the growth of microbes, which is why we have refrigerators. Things last longer in the fridge because bacteria and fungi grow slower in the cold. This is why the “COOL” bread doesn’t grow mold over a week, while the “WARM” bread does.

video play

Check out the Full Lesson on Bacteria & Viruses

In this lesson, we learn that:

  • Bacteria are living things made of only one cell.
  • Viruses can't reproduce on their own so they hijack cells to make copies of themselves.
  • Our immune system eliminates most bacteria and viruses.

Find More
Exciting Activities

More Activities

Browse All
Full Lessons

Watch Full Lessons
X
Success
We’ve sent you an email with instructions how to reset your password.
Ok
x
Choose Your Free Trial Period
3 Days

3 days to access to all of our teaching resources for free.

Continue to Lessons
30 Days

Get 30 days free by inviting other teachers to try it too.

Share with Teachers
Get 30 Days Free
By inviting 4 other teachers to try it too.
4 required

*only school emails accepted.

Skip, I will use a 3 day free trial

Thank You!

Enjoy your free 30 days trial

We use cookies to make your experience with this site better. By using this site you agree to our use of cookies. Click "Decline" to delete and block any non-essential cookies for this site on this specific property, device, and browser. Please read our privacy policy for more information on the cookies we use.Learn More

We use cookies to improve your experience. By using this site, you agree to our use of cookies. Click "Decline" to block non-essential cookies. See our privacy policy for details.Learn More