Search Results
Showing results 21 to 40 of 50
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-375.jpg?itok=DIpCDGUd)
From Gas to Liquid to Solid
Source Institutions
What causes frost to form on the outside of a cold container? In this activity, learners discover that liquid water can change states and freeze to become ice.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-994.png?itok=WHt8LGfO)
Milli's Super Sorting Challenge
Source Institutions
In this activity, learners separate materials based on their special properties to mimic the way recyclables are sorted at recycling centers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-993.png?itok=AuNzcOSP)
Water "Digs" It!
Source Institutions
In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-615.jpg?itok=U8ER1iZ2)
Polishing Pennies
Source Institutions
In this experiment, learners try different liquids to see which ones clean pennies best. Liquids to try include water, lemon juice, cola, vinegar, and dishwashing detergent.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-000.png?itok=YWz9q2rH)
Another Bright Idea!
Source Institutions
In this activity on page 5 of the PDF, learners use their knowledge of energy and batteries to create homemade flashlights.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-242.jpg?itok=G7PWtc1G)
Exploring Moisture on the Outside of a Cold Cup
Source Institutions
In this activity, learners explore the relationship between cooling water vapor and condensation. Learners investigate condensation forming on the outside of a cold cup.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-004.png?itok=2oVvHgkJ)
A Feast for Yeast
Source Institutions
In this activity on page 6 of the PDF (Get Cooking With Chemistry), learners investigate yeast. Learners prepare an experiment to observe what yeast cells like to eat.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-378.jpg?itok=jK0wMkRS)
Defining Dissolving
Source Institutions
In this introductory activity, learners discover that sugar and food coloring dissolve in water but neither dissolves in oil.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-379.jpg?itok=xXdyV36Y)
Solubility Test
Source Institutions
In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-015.png?itok=ERBPDS8C)
Glitter Slime
Source Institutions
In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-001.png?itok=Z7MAJxl2)
Super Shrinkers
Source Institutions
In this activity on page 14 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners turn plain pieces of recycled plastic into shrunken works of art.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-029.png?itok=-a4lkmoQ)
Spaghetti Strength
Source Institutions
In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-321.jpg?itok=x2LfwNeA)
Crushing Test
Source Institutions
In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-016.png?itok=dL85oT5v)
The Nose Knows!
Source Institutions
In this activity on page 9 of the PDF, learners test how flavoring extracts move through the walls of a balloon.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-017.png?itok=9G5AQVLZ)
Sweet Measurements
Source Institutions
In this activity on page 3 of the PDF, learners investigate how much sugar is in a soda. Learners use sugar cubes to measure and calculate the amount of sugar in a bottle of soda.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-003.png?itok=RdYkHSvQ)
Cheese: Behold the Power of Chemistry
Source Institutions
In this activity on page 7 of the PDF (Get Cooking With Chemistry), learners conduct an experiment to get an idea of how cheese is made.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-269.jpg?itok=IMqB7Mrb)
Powder Particulars
Source Institutions
In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-034.png?itok=73WAe8tX)
Safe in the Sun
Source Institutions
In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-008.png?itok=HyvvvbfK)
Paint a Fresco
Source Institutions
In this activity on page 7 of the PDF, learners experiment with the interesting designs that can be made by painting on plaster.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-627.png?itok=30ZtgSrQ)
Fantastic Plastic
Source Institutions
In this activity, learners investigate the properties of plastic bags. Learners find out what happens when they slowly push a pencil through a plastic bag filled with water.