Search Results
Showing results 1 to 20 of 23
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-279.jpg?itok=B8nRCnK5)
Recrystallization Test
Source Institutions
In this activity, learners recrystallize substances from solutions and make observations about the resulting crystals. This test can help further identify the unknown.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-541.png?itok=kU-asEDm)
Bready Bubble Balloon
Source Institutions
Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the yeast.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-085.jpg?itok=9MLyH6MJ)
Acid Rain Effects
Learners conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-396.jpg?itok=ld-vG2_u)
Jem's Pykrete Challenge
Source Institutions
In this activity, learners make pykrete by freezing a mixture of water and a material like cotton wool, grass, hair, shredded paper, wood chips, or sawdust.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-250.jpg?itok=KGu8Qveu)
Plaster of Paris
Source Institutions
In this activity (page 6 of the PDF), learners will observe both a chemical and a physical change.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-387.jpg?itok=pk1XIMGH)
Biodomes Engineering Design Project
In this design-based activity, learners explore environments, ecosystems, energy flow and organism interactions by creating a model biodome. Learners become engineers who create model ecosystems.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-853.png?itok=N1HwXKwG)
Amphibian Skin
Source Institutions
In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-923.jpg?itok=PY6j713h)
Limewater
Source Institutions
This is a chemistry lab activity about solutions (page 6 of the PDF). Students make a limewater testing solution for carbon dioxide and explore the concepts of solubility and precipitates.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-401.jpg?itok=apZHufws)
Composites
Source Institutions
In this activity, learners explore how composites work by creating and testing their own composite for an imaginary company.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-835.jpg?itok=76KTejvp)
Diffusion & Osmosis with Data Analysis
Source Institutions
This three-part lab helps learners understand the essential principles governing diffusion and osmosis.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-889.gif?itok=sK4MME8B)
Grow Rock Candy
Source Institutions
Learners grow sugar crystals (rock candy). They make a hot solution that has an excess of sugar dissolved in it, then as the solution cools, they see sugar crystals form.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-786.gif?itok=QVd4ZDrB)
Chemical Methods of Control
Source Institutions
In this lab, learners evaluate the relative effectiveness of various chemical substances (i.e. garlic powder, bathroom cleaner, mouthwash, etc.) as antimicrobial agents.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-332.jpg?itok=IsMbyw-s)
The Ups and Downs of Body Temperature
Source Institutions
In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-816.jpg?itok=4EmTFmnp)
There's Always Room For JELL-O
Source Institutions
In this activity, learners cut wells in JELL-O© and load the wells with different detergent solutions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-785.jpg?itok=lhu5ysd3)
Demonstrating An Epidemic
Source Institutions
This experiment allows learners to experience a small scale "epidemic," demonstrating the ease with which disease organisms are spread, and enables learners to determine the originator of the "epidemi
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-324.jpg?itok=rQfeu318)
Zero-Energy Housing
In this activity, learners investigate passive solar building design with a focus solely on heating.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-642.jpg?itok=XE7b5Qgs)
Environmental Chemistry
Source Institutions
In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-348.jpg?itok=BH0u606W)
Save Your Skin
Source Institutions
This is a fun activity about the power of the Sun and the importance of using sunscreen to protect your sensitive skin from its rays.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-854.png?itok=KuqHkP5I)
Frog Eggs
Source Institutions
In this activity, learners compare frog eggs to chicken eggs to better understand why frog eggs need water. Learners compare a boiled chicken egg to "frog eggs" represented by boiled tapioca.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-213.jpg?itok=KMwTEE40)
The Effects of Acid Rain
Source Institutions
In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.