Search Results
Showing results 861 to 880 of 1256
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-115.png?itok=ZquIu5T4)
Heart to Heart
Source Institutions
In this activity, learners compare ways to measure their heart rates. Learners build their own stethoscopes and learn how exercise affects heart rate.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-083.png?itok=MgbAEmIA)
Bugs, Worms & Others
Source Institutions
In this creative outdoor activity, learners invent populations of make-believe organisms and then investigate real populations living in the activity site.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-736.gif?itok=C5u6moz6)
Atmosphere Composition Model
Source Institutions
In this activity, learners create a model using metric measuring tapes and atmosphere composition data.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-407.png?itok=NxG01sIV)
Stream Table
Source Institutions
In this activity, learners use aluminum trays and wooden blocks to form stream tables to investigate river formations in two different landscape scenarios.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-230.png?itok=KTkqHzuO)
Terrestrial Hi-Lo Hunt
Source Institutions
In this outdoor activity, learners search for the warmest and coolest, windiest and calmest, wettest and driest, and brightest and darkest spots in an area.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-413.jpg?itok=Kb6Aw_lm)
Searching for Life
Source Institutions
In this activity, learners discuss how life is defined and conduct a simple experiment, looking for signs of life in three different “soil” samples.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-224.png?itok=uqBP86mX)
Sensory Hi-Lo Hunt
Source Institutions
In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-375.jpg?itok=3b3JOVpp)
Space Stations: Follow the Bouncing Ball!
Source Institutions
In this activity, learners predict whether a ball on Earth or a ball on the Moon bounces higher when dropped and why.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-166.jpg?itok=XL8HeKMQ)
Safer with Science-Masks
Source Institutions
Why should we wear masks? Do masks work? Do some masks work better than others? Learners find out in this activity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-318.gif?itok=nHBM6Auh)
Trees: Recorders of Climate Change
Source Institutions
In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and ho
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-786.png?itok=CzqilLxr)
Oboe? Oh, Boy!
Source Institutions
In this activity, learners create a straw oboe to explore sound and pitch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-330.jpg?itok=JlHNlusx)
Protect That BRAIN!: Mr. Egghead
Source Institutions
This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-137.jpg?itok=vPx1f0mA)
The Great Fossil Find
Source Institutions
On an imaginary fossil hunt, learners "find" (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-581.jpg?itok=ucp32omD)
Malformed Frogs
Source Institutions
This activity (on page 2 of the PDF under SciGirls Activity: Malformed Frogs) is a full inquiry investigation into using indicator species to assess the health of an environment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-325.jpg?itok=Z52LHb9Q)
Oil Spill Cleanup
This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-580.jpg?itok=MljVVkuE)
Invisible Ink
Source Institutions
In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-650.jpg?itok=KtuuriaC)
Rainbow Film
Source Institutions
In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-787.png?itok=luXRvpUX)
Beachcombing
Source Institutions
In this outdoor activity, learners become beachcombers as they walk on a sandy beach in search of evidence of life.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-331.jpg?itok=oKOFL4SX)
Built in Stopwatch
Source Institutions
In this activity (3rd on the page), learners investigate circadian rhythms by examining how well people do with estimating time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-377.jpg?itok=ir8pOdNy)
Make a Wire Critter That Can Walk on Water
Source Institutions
In this activity, learners make water-walking critters using thin wire, and then test how many paper clips these critters can carry without sinking.