Search Results
Showing results 141 to 160 of 346
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-808.jpg?itok=_AO9ZqAJ)
Enzyme Action
Source Institutions
In this activity that can be used as a lab or demonstration, learners use Lactaid® and lactose to demonstrate the concept of enzyme action.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-130.png?itok=EqTknWKc)
Shake and Make: Charge Recognition
Source Institutions
In this activity (page 10), learners explore how molecules self-assemble according to forces of attraction and repulsion.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-607.gif?itok=woQGursp)
Mighty Molecules
Source Institutions
In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-539.png?itok=HaGUuGA4)
Science of Sunblock
Source Institutions
This is an activity (located on page 3 of the PDF under Stained Glass Activity) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particl
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-919.jpg?itok=BtPUzlyg)
Comparing Crystals
Source Institutions
In this chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-924.gif?itok=ud5JOWVA)
Chemical Reactions in Your Mouth
Source Institutions
In this chemistry activity (page 5 of the PDF), learners will see that chewing is more than just the crushing up of food; there is actually a chemical change going on at the same time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-329.gif?itok=ZP1YuTH4)
Cabbage Juice Indicator: Test the pH of household products
Source Institutions
Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-244.jpg?itok=-k28o94E)
Gassy Lava Lamp
Source Institutions
In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.
![](/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-000-000-001-649.gif?itok=OfKuumNd)
Column Chromatography
Source Institutions
In this activity, learners separate the components of Gatorade using a home-made affinity column.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-245.jpg?itok=OANpcFi_)
Molecules in Motion
Source Institutions
"Molecules in Motion" explores how materials behave and change in a vacuum.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-903.jpg?itok=xjsY00MP)
Unleakable Bag
Source Institutions
In this activity, learners explore the flexibility of polymer chains by pushing sharpened pencils through a Ziploc bag.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-846.jpg?itok=PtKN8P8Z)
Instant Ice Cream with a Dry Ice Bath
Source Institutions
In this chemistry meets cooking activity, learners make carbonated, vanilla ice cream using dry ice and denatured ethanol, which are both inexpensive and accessible.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-524.jpg?itok=XNvcQaJ9)
Chromatography Observations
Source Institutions
In this activity, learners will explore how water affects marker on filter paper. Learners will use science process skills such as making observations and predictions as they explore color.
![](/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-000-000-004-290.png?itok=lEfdiqMn)
Color Splash
Source Institutions
In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-328.png?itok=Sf9sOHcd)
Cloudy Globs: Can You Make a White Gel From Two Clear Liquids?
Source Institutions
Using household materials, learners can make white gooey globs from clear solutions. Alum, dissolved in water, reacts with the hydroxide in ammonia to create aluminum hydroxide.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-371.jpg?itok=G0NIzJmW)
Pop Rockets
Source Institutions
Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-162.jpg?itok=oVUkgi9_)
Candy Chemosynthesis
Source Institutions
In this activity, groups of learners work together to create edible models of chemicals involved in autotrophic nutrition.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-374.jpg?itok=oXb50E3o)
No Saliva, No Taste?
Source Institutions
In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.