Category: Fun Science Activity (Page 67 of 112)

Weekend Science Fun: Honey Bees

Happy 2011!

Now it is time to sweep the cobwebs from the blog, check all the old links, delete the posts that are no longer relevant, and spruce up Growing With Science for the New Year. Time to reflect on what we have accomplished and plan where to go from here. Always a fun time of year.

A special thanks to all the regular followers who have made this blog such a wonderful experience! Please let me know if you have any comments/suggestions/questions to help us become even better in 2011.

How Honey Bees Keep Warm

In the last bug of the week blog post I mentioned that honey bees have a way to keep warm that is different from that used by butterflies. It turns out that the radio show Science Friday had a discussion last week (Friday, December 24th, 2010) all about honey bees called Buzz on Bees. One of the show’s guests, Dr. Thomas Seeley from Cornell University, explained that even when it is very cold outside honey bees keep the temperature within their hives up to 90° F. That’s pretty warm! No wonder the worker bees are able to fly when no other insects are moving.

(Photograph taken December 28, 2010 in San Diego, California.)

How do the bees keep warm? They feed on the honey they have stored in the honeycomb, which gives them energy to shiver. Basically, honey bee shiver and shake to create warmth. They use about a pound of honey per week to accomplish this (you can hear the podcast here.)

Honey Bees Swarming

Dr. Seeley also talked about how honey bees make new colonies, a process called swarming. During the time that the scout  honey bees are looking for a place to make their new home.

Vocabulary:

  • queen honey bee – the large bee that lays all the eggs in a bee colony
  • swarm – a group of honey bees moving from a colony to find and start a new nest, usually contains a queen and about 10,000 worker bees
  • scout bees- worker bees that search for new nests for the swarm, pick the most promising, and lead the rest of the bees to the new site
  • waggle dance – the way the scout bees communicate with each other on the surface of the swarm
  • piping- a sound scout bees make to rouse the rest of the bees in the swarm to get ready to fly
  • buzz run- the actions and sounds of the scout bees letting the swarm bees know it is time to take off
  • wax glands- glands on the underside of the honey bee worker’s abdomen that produce wax for the new honeycomb in the new nest
  • aggregation pheromone- special odors produced by the honey bees to bring the swarming bees back together in a cluster

Making Honey

The other guest on the show was Dr. May Berenbaum 
from the University of Illinois. She explained how bees make honey from nectar and some of the special properties of honey. Basically the bees gather nectar from flowers, carry it back to their nest in a special stomach called a crop and then pass it to other bees for processing. The worker bees dry the moisture from the nectar, add some special enzymes to change the chemistry of the nectar and over time it becomes honey. When it is done, the bees cap the cells that contain honey with wax. The honey can stay fresh in the cells almost indefinitely.

Activity:

Make a Sweet Honey Book

First discuss how bees collect nectar and make honey.

Information Sheet: What Bees Eat

Secondly, explain that humans have long used honey for food and as a sweetener. Have your children gather stories and poems about honey bees, and recipes using honey from their relatives and family friends and /or the library (like these) or make up their own. Group stories, poems and recipes together to create a small book, decorate with honey bee artwork, and print for distribution.

For more honey bee-related activities and information, see this previous post.

Both Dr. Seeley and Dr. Berenbaum have new books out, written for adults.

Tom Seeley’s is Honeybee Democracy (Princeton University Press, 2010)
.

May Berenbaum is the 
editor of Honey, I’m Homemade: Sweet Treats from the Beehive Across the Centuries and Around the World (University of Illinois Press, 2010).

And for kids our growing list of children’s books about bees at Science Books for Kids.

Note: If any of the links are broken for you, please leave a comment and I will try to retrieve them.

Weekend Science Fun: Lunar Eclipse Coming

Have you heard there’s going to be a lunar eclipse on Monday December 20, 2010 – Tuesday December 21, 2010?

The exact times are Monday December 20, 2010 starting at 11:33 p.m. through Tuesday December 21, 2010 at 3:01 a.m. AZ time (that is 1:33-5:01 a.m. Eastern)

It’s a great learning opportunity for your children.

There are related activities for kids and information from NASA’s Jet Propulsion Laboratory. The movie that shows how solar and lunar eclipses occur is helpful. You might want to build your own model.

NASA Science has general information plus links.

Mr. Eclipse has extensive, detailed information about the lunar eclipse, as well as some spectacular photographs.

If the weather is clear, try looking at the moon tonight. If you have binoculars or a small telescope, try those too.

The most obvious features on the face of the moon are the dark circles of impact craters, where meteorites and other space debris have hit the surface. It might be time to re-visit an old standby activity. Your children can create and study craters with a few simple ingredients.

Gather:

  • two types of flour of different colors (check in the back of the cupboard for something that has gone stale)
  • a large cake pan or other deep pan (preferably unbreakable) or even a shoe box
  • hard rubber balls or round rocks to act as meteorites
  • stable step stool, stepladder or chair (optional)

Note: Often instructions for this activity (like the video below) use cocoa powder, but I found that can be expensive. A whole wheat flour and a white flour will work just as well. You can even see the results with one type of flour, although perhaps not quite a clearly.

Fill a large cake pan or other deep pan (preferably unbreakable) halfway with colorful flour, such as whole wheat or corn meal. Then gently add a layer (an inch or so) of white flour over the entire surface.

Take the flour container outside, if possible, and set it on a low, flat surface. Have your kids stand on a secure chair or stepladder and drop various round objects into the flour. The results should be some interesting craters and splash patterns, which are the patterns of debris shot out of the crater with impact.

You should see something like this:

Any ideas why the moon has so many visible craters where the earth does not? There are actually at least two reasons. See if you can think of them.

Check Enchanted Learning for more details about lunar craters.

Let us know if you get to see the lunar eclipse.

For more information on astronomy, try:

Weekend Science Fun: Upcoming Events

Let’s take a look at some of the diverse science-related opportunities ongoing and coming up.

See the Geminids Meteor Shower

It is meteor shower time again. According to StarDate, the best viewing for the Geminids meteor shower will on the morning of December 14, anytime after midnight. Winter viewing of meteor showers can be challenging because of the cold, but the longer night means you and your family can get up a more reasonable hour and it will still be dark enough the see meteors shooting across the sky. Other, smaller showers also occur in December.

Participate in a Science Contest

The Pulse of the Planet’s “Kids’ Science Challenge” is open right now to students enrolled in 3rd through 6th grade at a public, private, parochial, or home school located in the US. To participate, students register and then submit an idea, question, or problem for a scientist to solve. The registrations and submissions must be uploaded, faxed or postmarked between October 1, 2010 at 12:01 AM EST and 11:59 PM EST on February 28, 2011, according the the website.

For more information, be sure to read:

Contest Rules

Information for Teachers and Parents

Thanks to Karen for bringing this to our attention.

Count Birds

Although Audobon’s Christmas Bird Count is coming up, we have found the Great Backyard Bird Count to be highly kid-friendly.  This one always sneaks up on us, so start planning now. The next count will be Feb. 18-21, 2011.

Get Ready for The International Year of Chemistry

The fact that 2011 is the International Year of Chemistry will inspire some of our weekend science fun activities in the next few months, and we’ll keep an eye on the website for other kid-friendly events as the year progresses. A comic book history of women chemists is already in the works and there’s also a video contest for high school students.

Please let us know if you participate in any of these events. or if you find any fun science contests/projects open to children that you’d like to share.

I wonder if we’ll count any cactus wrens this year.

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