As we fast approach the end of the school year, I'm looking at different educational science activities that my children can take part in over the summer. I've narrowed it down to my ten favorites:
10. The easiest place to start is right in your own backyard. Give children a bug catcher, a magnifying glass, or simply a pencil and paper. Ask them to search the yard and see who and what lives there? Take it further and have them check different locations (ie at a grandparents house, lake cabin, friends yard, etc). Encourage the children to figure out what factors lead to the organisms living in a particular environment.
9. Take a Nature Walk. There are so many walking paths and trails in the US that are underutilized by families for educational purposes. To this day, I still hear from my kids about the beaver they saw building a damn when they took a nature walk in their preschool. This is a great way to learn about an animals habitat.
8. Go outside and look up! On a clear night, there are so much in the sky to see. Having a telescope makes this even more educational and valuable. Even without one, we can still see quite a bit. Don't be afraid to use the internet to see when and where planets will be visible.
7. Go to a museum. This should go without saying, but depending on the age of the children, one can visit any good museum multiple times and always find new things they didn't get to see on a previous trip. As far as Chicago goes, my kids really love the Museum of Science and Industry.
6. Take them to the Zoo! Large and small, all zoos offer so many opportunities to learn and kids absolutely love going to a zoo.
5. Utilize the programs offered by your local park districts. Many park districts offer events ranging from reptile interactions to butterfly hunts to lessons about dinosaurs and fossils. These are sure fire hits with kids.
4. Start a rock collection. Have kids collect as many different types of rocks (or seashells depending on where you live) and see how many they can identify. There are many great posters out there that can help identify rocks, minerals, or seashells. A quick search on the internet will help you find one. Note: our principal, Feenixx Publishing produces the finest ones I've seen. Email me at JGura@fischertech.com and I can refer you to a distributor.
3. Backyard Bird Identification. This is another activity that could be significantly aided by a Backyard Bird poster which again is easily found with a quick web search. Again, I highly recommend the posters from Feenixx Publishing. You'd be amazed how many different types of birds visit your neighborhood.
2. Blow Something up.....safely. I highly encourage this to be done outdoors. Taking care not to get their face in the way, drop a few Mentos into a two liter bottle of diet coke (don't use regular coke unless you want the sugar to stick to everything). I've seen a great products on the internet that attach to the top of a soda bottle and allow a string to be pulled which safely releases the Mentos into the soda. You'll be amazed at how high the soda flies. Ask your kids to explain scientifically why this happened.
1. My personal favorite science activity is taking my kids to an amusement park. If your kids are younger, start out with simpler questions for them to find out, such as why a ride has a height restriction. Older kids can really dissect a park through physics by calculating speed, acceleration, centrifugal and centripetal forces, height, friction, etc. There is always a smile on my face when my 6 year old explains to his younger brother why people don't fall out of roller coasters that go upside down!
Please share your ideas for additional activities and adventures to help us mold the future scientists of the world. Need motivation....just remind yourself that the kids of today will be our caretakers of tomorrow!
Friday, May 13, 2011
Tuesday, May 3, 2011
Top 5 Experiments Using a High Vacuum Pump
We've been successfully supplying our LAV-3 model high vacuum pump to science education dealers now for well over 20 years. Teachers always ask what is the best and most vivid experiments they can do in their classrooms to teach physics with our pump.
Of course, to get started, you'll need a vacuum pump (I highly recommend the LAV-3 or the LAV-3/G model from Fischer Technical, which can be purchased from your regular science education dealer), high vacuum tubing, a vacuum pump plate, and a good quality bell jar.
5. Shaving Cream Expansion - Put a little dab (technical term) of shaving cream inside your bell jar (which is then sealed onto the pump plate), turn the pump on and watch the molecules spread themselves out and the Shaving Cream grows! Be careful not to let it run too much where you pull the Creme into the vacuum pump though!
4. Grow a Balloon - place a balloon, filled a little bit and tied off inside your bell jar and turn the pump on. Students will be curious as to why the balloon expanded while the air is pulled from the chamber.
3. Springtime (Easter) Peep Monster - place one of those terribly unhealthy, yet tasty, sugar coated marshmallows, THE PEEP, inside your bell jar. Turn on the pump and watch your baby peep turn into a Stay Puft Marshmallow Man peep!
2. Did you hear a bell ringing? - place an electric bell or kitchen timer inside your chamber and turn on the pump. Make sure the bell is turned on! As the air molecules are pulled from the chamber, the sound will slowly disappear until it is gone! Great way to explain to students why an astronaut would never be heard if he were to start screaming while in outer space.
1. Cool Boiling Water - My all time favorite. It is absolutely critical that your pump is a "high vacuum" pump and not just a vacuum pump. You'll need to pull a much higher vacuum than the 25" of mercury some pumps offer to do this. Place a plastic bottle or petri dish in the chamber filled about half way up with water. Demonstrate to your students that the water is at room temperature and not hot to the touch. Put it in the vacuum chamber, turn on the pump, and in no time you'll have room temperature water simmering at a rapid boil. What better way to explain the effects on vapor points in different atmospheric pressure?
You can do a quick search on the internet and find all of these supplies from virtually every science education dealer....make sure to look for "Fischer Technical Brand". One tip, keep an eye on your vacuum pump oil level and drain and change any contaminated oil. Be sure to use "High Vacuum Pump Oil" as standard vacuum oil or other "home remedy" solutions (See: motor oil, vegetable oil, etc) will not allow the pump to continue operating properly!
Happy Teacher Appreciation week and good luck molding future physicists!
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