Search Results
Showing results 501 to 520 of 773
![](/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-000-000-004-310.png?itok=3XhkT87c)
Super Golf Tower
Source Institutions
In this engineering activity, challenge learners to build a tower out of 10 sheets of newspaper and 3 feet of masking tape, which can hold a golf ball balancing at the top.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-191.jpg?itok=XvlRhR5N)
Physics by the Fire: Matchstick Rocket
Source Institutions
Learners build a small rocket using a matchstick and a piece of aluminum foil. A second, lit match launches the match rocket. This activity involves fire; adult supervision required.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-396.jpg?itok=q706CL0E)
How Fast Are You?
Source Institutions
This activity is designed to let learners measure their reaction time or response time to something they see.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-185.jpg?itok=US1AV6nk)
Spots, Lines and Lasers
Source Institutions
Learners shine the light of a laser pointer through sheets of fabric that all have a different number of threads per inch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-864.jpg?itok=8r_fqYlo)
Eggshell Inertia
Source Institutions
In this physics activity (page 14 of the PDF), learners gain a better understanding of how friction and mass affect objects by comparing the rotational inertia of raw and hard-boiled eggs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-338.png?itok=-2fBVjG5)
Applesauce
Source Institutions
In this "Sid the Science Kid" activity from Episode 109: The Perfect Pancake, learners make applesauce to explore irreversible change.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-504.jpg?itok=gojtJ42u)
Bubble Wrap Printing
Source Institutions
In this activity, learners will use bubble wrap to print patterns on paper and experiment with mixing colors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-297.jpg?itok=A2WfHkkh)
Spicy Indicator: Use turmeric to test for bases in your home
Source Institutions
This activity uses turmeric, a common spice in curry, as an indicator for acidity and basicity. Turmeric is yellow in acid and neutral substances, but turns bright red with bases.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-283.jpg?itok=3n7stoLx)
Supernova Star Maps
Source Institutions
This fun astronomy activity allows learners to experience finding stars in the night sky that will eventually go supernova. This activity is perfect for a star party outdoors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-254.gif?itok=pL1xQtic)
Chromatography
Source Institutions
In this activity (page 3 of the PDF), learners will observe a physical change.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-184.jpg?itok=sZzOkOVD)
How Thick is Your Hair?
Source Institutions
In this activity on page 13 of the PDF, learners use a laser pointer (with known wavelength of light) to measure the thickness of a human hair.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-657.png?itok=UDbNV7vv)
Shake and Match
Source Institutions
In this activity, learners create a hearing based memory game that they can share with friends.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-311.png?itok=eLvje9Ex)
Spool Racer
Source Institutions
In this physics activity, challenge learners to make a rubber band-powered spool racer. Demonstrate principles of motion as well as potential and kinetic energy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-190.jpg?itok=nQaRagwh)
Glow in the Dark
Source Institutions
Learners experiment to see which colors of light will cause a phosphorescent (glow-in-the-dark) material to glow.
![](/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-000-000-002-736.jpg?itok=uvfOfqef)
Polarized Light Mosaic
Source Institutions
In this activity, learners use transparent tape and polarizing material to create and project beautifully colored patterns reminiscent of abstract or geometric stained glass windows--no glass required
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-798.jpg?itok=tK0IBtSk)
A Crayon Rock Cycle - Igneous
Source Institutions
This is part 3 of the three-part "Crayon Rock Cycle" activity. Before starting this section, learners must have completed part 1: sedimentary rock and part 2: metamorphic rocks.
Send Secret Messages
Source Institutions
In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.
![](/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.