You probably know that objects sink or float in water depending on their density. But did you know that liquids can sink and float, too? In this activity, you will create a colorful liquid density column by stacking different liquids on top of each other. How many layers can you create? Written instructions are available on our website at https://www.sciencebuddies.org/stem-activities/liquid-stacking-density?ytid=lYITnkFxa5A&ytsrc=description
Science Buddies also hosts a library of…
Have you ever made your own ice cream? It can be a lot of fun, and you end up with a tasty frozen treat! In this activity, you will explore the interesting chemistry that goes on behind making ice cream. If you do it right, you will have ice cream ready to eat within 10 minutes! Written instructions are available on our website at https://www.sciencebuddies.org/stem-activities/ice-cream-bag?ytid=i_IMvzu9BD0&ytsrc=description
Science Buddies also hosts a library of instructions for over 1,500…
Kit with project supplies here: https://www.homesciencetools.com/product/electrolyte-sport-drink-sensor-science-kit/?aff=SB1
What has more electrolytes, Gatorade or orange juice? Find out in this science project as you build a circuit to measure the electrolyte content of different drinks. Written Instructions: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Chem_p053/chemistry/electrolyte-challenge-orange-juice-vs-sports-drink?ytid=-vTBn11SE9c&ytsrc=description
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View an explanation of how to read a graduated cylinder by measuring the lowest portion of the meniscus.
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Science Buddies 2011 Summer Science Fellows explain the chemistry and physics of the explosion that occurs when they ignite ethanol trapped in a film canister. You can see the full science experimental procedure for this science fair project idea--and do it yourself!— in 'Getting a Bang Out of Breath Spray: Studying the Chemistry and Physics of a Small Explosion' project idea…
Set on the beautiful beaches of Hawaii, “Reefs at Risk” explores the harmful effects some sunscreen chemicals have on coral reefs, marine life and people. In order to protect this fragile ecosystem, Hawaii lawmakers pass a bill to ban the sale of sunscreens with oxybenzone and octinoxate. To learn more and download a reef safe sunscreen guide go to www.ReefsAtRisk.org
This issue is not just relevant to people living in coastal areas or visiting coral reefs; the use of these products inland…
What is the Carbon cycle? The carbon cycle is one of several biogeochemical cycles found on Earth. Carbon is found in almost all living organisms and makes up around .04 percent of our atmosphere.
What are the steps of the carbon cycle and how does the Carbon cycle work?
Carbon may travel several paths including,
The atmosphere, the terrestrial biosphere, the earth’s interior which includes the lithosphere, the ocean, and human influence like burning fossil fuels and other objects that store…
Did you know that a candle flame can jump through the air to light up another candle? It sounds like magic, but it is not! Watch this video and find out how the jumping flame trick works! This is our second entry in the @veritasium Science Communication Contest; it is inspired by the popular "jumping flame" experiment. It was made by Dr. Svenja Lohner, a Science Buddies' staff scientist.
Science Buddies is a nonprofit organization dedicated to bringing the joy of hands-on STEM learning to…
Titration
Learn how to master the art of titration in this video with a detailed demonstration of an acid/base titration using phenolphthalein.
Created by Dr. Sarah Tabacco and Aaeyesha Siddiqui
View the complete resource at: https://ocw.mit.edu/courses/res-5-0001-digital-lab-techniques-manual-spring-2007/
License: Creative Commons BY-NC-SA
More information at http://ocw.mit.edu/terms
More courses at http://ocw.mit.edu
WARNING NOTICE:
The experiments described in these…
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