Search Results
Showing results 1901 to 1920 of 2160
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-809.jpg?itok=qFpIvMrq)
"Boyle-ing" Water
Source Institutions
In this activity, learners explore Boyle's Law and discover that water will boil at room temperature if its pressure is lowered.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-074.gif?itok=OqFPc73X)
Maritime Munchies
Source Institutions
In this activity, learners follow simple historical maritime recipes to cook up hardtack and swanky, and then compare the foods they eat to what was served on ships in the past.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-019.png?itok=zqpevqEx)
Avi's Sensational Salt Dough
Source Institutions
In this activity on page 5 of the PDF, learners mimic the process for making bricks. Learners shape and bake creations from a dough that is made from flour, salt, and water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-031.png?itok=b_4fZEGw)
Cleaning Water with Dirt
Source Institutions
In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-601.png?itok=Og6uAZtW)
Small Habitats
Source Institutions
In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-025.png?itok=2oSwsZuP)
Testing Vitamin C: Chemistry's Clear Solution
Source Institutions
In this activity on page 8 of the PDF, learners investigate vitamin C. Learners conduct a chemistry experiment to determine if Tang drink mix or orange juice contains more vitamin C.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-612.jpg?itok=YfIlX_iG)
Scent Tag
Source Institutions
In this matchmaking activity (on page 2 of the PDF under GPS: Animal Scent Activity), learners will each have a scented cotton ball taped to their shoulder. The scent (e.g.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-830.jpg?itok=t_8xLZWT)
Forwards and Backwards
Source Institutions
In this activity, learners explore acids and bases by preparing six solutions that combine vinegar and ammonia, ranging from acid (all vinegar) to base (all ammonia).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-059.jpg?itok=EeEdnw6B)
Code Cracker
Source Institutions
Whether it's the genetic code, an ancient language, or patterns of light in a distant galaxy, scientists often have to play the role of decoder.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-504.jpg?itok=yG8PeTKh)
Production of Hydrogen
Source Institutions
In this chemistry activity, learners use mossy zinc (or a galvanized nail) and hydrochloric acid to generate hydrogen gas and test some of its properties.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-071.jpg?itok=0aEONuxQ)
Curie Point
Source Institutions
In this activity best suited as a demonstration, learners observe that when a piece of iron gets too hot, it loses its ability to be magnetized.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-895.jpg?itok=O2ptLFID)
Recycling Rules: Understanding Recycling and a MRF
Source Institutions
In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-659.jpg?itok=oyaLhCcc)
Sand, Plants and Pants
Source Institutions
In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-589.jpg?itok=4Vybc0Vo)
Sand Castle Saturation
Source Institutions
In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-204.png?itok=i9iunUmA)
Sawing Away
Source Institutions
In this outdoor activity, learners saw sections from fallen trees, then count tree rings and look closely at patterns of tree growth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-433.jpg?itok=09L0ABoR)
Egyptian Measuring
Source Institutions
In this activity, learners compare the ancient Egyptian system of measurement, which was based on body lengths, to the customary and metric systems used today.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-341.png?itok=vNuLzdtu)
Colors in Nature
Source Institutions
In this activity, learners create colorful bead bracelets to wear outside while searching for matching colors in plants. Learners will be surprised by the variety of colors in nature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-576.jpg?itok=VoY4sx49)
Soda Geyser
Source Institutions
In this quick activity (page 1 of PDF under SciGirls Activity: Lift Off), learners will use the ever-popular soda geyser experiment to test the reactivity of the various sugar candies or mints.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-210.png?itok=m-o95KID)
Out of Control
Source Institutions
In this outdoor activity, learners release a portion of a lawn from human control—no mowing, no watering, no weeding, no pest control—and then investigate the changes that result over several weeks.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-238.png?itok=PDf5gZA0)
Logs to Soil
Source Institutions
In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.