Does anyone have some good ideas for a few yr 9/10 pracs for enviro science..such as energy efficiency, solar electricity??
Cheers,
Katie
enviro
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Ian
- Posts: 575
- Joined: 16 Oct 2006, 10:00
- Job Title: Lab Assistant
- School: Macarthur Anglican School
- Suburb: Cobbitty
- State/Location: NSW
Re: enviro
Hi Katie,
There is the old "Black Can and White Can" one where you either paint some soft drink cans white and some black and put a thermometer into each can and stick them in the sun for a while. The black can should get hotter. The thermometer should be suspended so that it does not touch the sides or bottom of the can. This can be done by putting a thermometer size hole through a cork and putting the cork/thermometer into the hole in the can.
You can get little solar panels from Jaycar that the kids could use to power little motors, or LED lights, etc.
For a dem, put a glass cover over a box. put the covered box and a non covered box in the sun for a while and measure any temperature difference. (also demonstrates greenhouse effect!)
For a project, the kids could build a solar sausage cooker. make a large parabolic mirror out of cardboard, covered with alfoil, and make a sausage rotisserie at the focal point of the mirror.
Another project idea might be to make a model solar hot water heater from black sprinkler hose in a black box with a glass lid and use a PET bottle for a storage vessel above the bow to set up a thermosyphon.
There will be other labbies with other (and better) ideas, but I hope this helps a bit
Cheers
Ian
There is the old "Black Can and White Can" one where you either paint some soft drink cans white and some black and put a thermometer into each can and stick them in the sun for a while. The black can should get hotter. The thermometer should be suspended so that it does not touch the sides or bottom of the can. This can be done by putting a thermometer size hole through a cork and putting the cork/thermometer into the hole in the can.
You can get little solar panels from Jaycar that the kids could use to power little motors, or LED lights, etc.
For a dem, put a glass cover over a box. put the covered box and a non covered box in the sun for a while and measure any temperature difference. (also demonstrates greenhouse effect!)
For a project, the kids could build a solar sausage cooker. make a large parabolic mirror out of cardboard, covered with alfoil, and make a sausage rotisserie at the focal point of the mirror.
Another project idea might be to make a model solar hot water heater from black sprinkler hose in a black box with a glass lid and use a PET bottle for a storage vessel above the bow to set up a thermosyphon.
There will be other labbies with other (and better) ideas, but I hope this helps a bit
Cheers
Ian
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lurra
- Posts: 114
- Joined: 23 Mar 2011, 07:54
- Job Title: Lab Tech
- School: Greystanes High School
- Suburb: Greystanes
- State/Location: NSW
Re: enviro
They could alway's make a solar oven with Al foil in a box and cook som snag's
Lurra AKA Noona
Rosalie Cassar
Lab Tech
Greystanes H S
ROSALIE.CASSAR@det.nsw.edu.au
Rosalie Cassar
Lab Tech
Greystanes H S
ROSALIE.CASSAR@det.nsw.edu.au
Re: enviro
to demonstraite the green oude effect every year one of our teachers get students to make a little triangle house with 3 microscope slides and plastcine they take them outside into the sun with two thermometers one in the house and one out in the open and record the tempreature difference on the two thermometers
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RosalieM
- Posts: 1795
- Joined: 20 Mar 2007, 10:00
- Job Title: Lab Assistant
- Suburb: Tamworth
- State/Location: NSW
Re: enviro
There is a really good video - "Bang Goes the Theory - the Human Power Station" which shows how much push bike power it takes to run a house. It really puts power use into perspective!! It was on TV last year and I caught the end of it. I had our librarians track it down.
Re: enviro
wow. so many ideas. Thank you all for your efforts.
cheers, katie
cheers, katie
