Category: Fun Science Activity (Page 51 of 112)

The Phylo Project

Did you know there was a study done in 2002 that showed that children recognize more fictional Pokemon characters (120) than photographs of real plants and animals from their own neighborhood (see details)? In response biologists and artists have worked together to start The Phylo Project, a trading card game that uses some of the appeal of Pokemon to teach children about the natural world around them.

The site is filled with lovely cards. Each one has the organism’s common name, scientific name, Kingdom, Phylum and Class, as well as points and moves for the game. If you click on the permalink option under each card, it will take you to a more extensive information page about the organism illustrated (click the card shown here to see an example).

The Phylo Trading Card Game is free to anyone who wants to try it. All it requires is a printer and some time to download and print out the rules and a starter deck of cards (laminating the cards might be a good idea, too).  Do-it-yourself cards are encouraged as well and a widget is in development to make diy cards easier.

Suggested Activity:

Even if your children or students are not interested in playing the game, print or create a card whenever you encounter a new living thing as a way to record your nature observations. Add notes to the back about where and when you saw the insect, bird or flower and what you learned about it. Think of the cards as a different form of nature journal. To help with organization, you could use one color background for insects, another for mammals and another for fungi, etc. Make multiple copies to share your findings with a group of interested friends. The possibilities are endless.

Have fun!

I’d love to hear what you think of this and if you give it a try.

Great Backyard Bird Count 2012

Did you take part in the Great Backyard Bird Count last weekend? If you did, don’t forget you have until March 5, 2012 to report your tallies.

Here are my son’s results for the 2012 GBBC:

Mourning Dove – 8
Inca Dove – 1
Anna’s Hummingbird – 3
Curve-billed Thrasher – 1
Abert’s Towhee – 2
House Finch -  3
Lesser Goldfinch – 6
House Sparrow – 3

He then compared his results to earlier years.

2011 GBBC:

Mourning Dove – 8
Inca Dove – 1
Anna’s Hummingbird – 2
Black Phoebe – 1

2010 GBBC:

Mourning Dove – 5
Anna’s Hummingbird – 2
Curve-billed Thrasher – 1
Abert’s Towhee – 2
Great-tailed Grackle – 1
House Finch – 15
House Sparrow – 22

It was interesting to see some trends, and realize that we were learning quite a bit. First of all, he has noticed that the Abert’s Towhees are always present in pairs, a male and female. That’s why there are always two in each count. On the other hand, he usually sees single curve-bill thrashers.

The curve-bill thrasher has a unique curved bill and bright yellow eyes.

The house finches, house sparrows and lesser gold finches travel in larger groups. The numbers of house finches are starting to rebound after a low last year.

Elsewhere, according to this report from the Cornell Lab of ornithology, people have been spotting a lot of snowy owls this year. Now that would be spectacular!

What birds did you see?

Weekend Science Fun: Learning About Science Through History

Today we are going to do something a bit different. Let’s take a look how you can use a history book as an inspiration for a science experiment.

The Great Molasses Flood by Deborah Kops is an account of an unusual disaster that hit Boston in 1919. It is written for middle grade readers.

On a quiet day in January 1919, a giant tank of molasses gave way and flooded a nearby neighborhood. People were injured or killed, and a few buildings were destroyed. At first everyone was concerned about rescue and cleanup, but very soon focus turned to how the disaster could have happened.

Some people suggested the reason the tank came apart could have been due to a bomb planted by anarchists. Others said it was simply a poorly-built tank that came apart at the seams. Still others thought the molasses might have been fermenting. Fermentation is a process that converts sugars into alcohol and carbon dioxide gas, often through the activity of yeasts (see note). Could lowly yeasts have had a role in this disaster?

Fermentation Activity:

Let’s examine how fermenting molasses might have been involved in this mysterious event.

This activity takes at least one hour.

Gather:

  • Two empty plastic water or soda bottles (about 12 oz size) for each participant
  • Sharpie marker
  • Measuring cups and spoons – 1/3 cup, 1 Tablespoon and 1 teaspoon sizes
  • Warm water
  • Unsulphured molasses (substitute granulated sugar if needed)
  • Yeast used for baking (available in packets or jars)
  • Two uninflated party-size balloons for each participant
  • Rulers
  • Funnel (optional, but helpful)

Label one of the bottles “control” and one “molasses.” The control will contain all the same ingredients except molasses (You can reduce the number of controls if you are working with a large group). Add 1/3 cup warm water to each bottle with the funnel. Pour 2 Tablespoons of molasses into the bottle labeled “molasses” and swirl gently to mix. Wash and dry the funnel if you want to use it to add the yeast. Add 2 teaspoons of yeast per bottle to both bottles. Again swirl each bottle gently for a few seconds to mix the yeast into the water. Now cap each bottle with an uninflated balloon and set aside.

Check what is happening after 15 minutes and after a half hour, after 45 minutes, and after an hour.

What happens to the bottle that contains the fermenting molasses? How does that compare to the control? Measure each balloon at its widest part with the ruler and compare the results.

Encourage the children to draw their own conclusions. Could a large, possibly overloaded tank of molasses explode if the molasses began to ferment? What about the fact it was winter? Do you think temperature would be a factor? The author does say it was an unseasonably warm day. Can you think of a way to test if temperature is a factor?

(Note: The use of the plural yeasts in the upper paragraph refers to the fact that there are multiple species of yeasts involved. Typically the singular “yeast” is used to describe baking yeast. Hopefully that isn’t too confusing.)

Read The Great Molasses Flood by Deborah Kops to find out more.

Reading level: Ages 9-12
Hardcover: 112 pages
Publisher: Charlesbridge Publishing (February 1, 2012)
Language: English
ISBN-10: 1580893481
ISBN-13: 978-1580893480

Book provided by the publisher for review purposes.

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