Search Results
Showing results 441 to 460 of 512
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-458.jpg?itok=qiITeSH9)
A Closer Look at Crystals
Source Institutions
In this activity, learners compare different types of salt crystals under a magnifying glass.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-788.gif?itok=HWD1WL_n)
Rubber Band newton Scale
Source Institutions
In this activity, learners make a simple spring-like scale using a rubber band instead of a spring, and calibrate the scale in newtons (N).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-700.jpg?itok=3SRulhDd)
Two-String Yo-Yo
Source Institutions
Learners build a yo-yo using a piece of wood, PVC pipe, and string. In doing so, learners explore the force of gravity and angular momentum.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-600.jpg?itok=A5LdOls_)
Benham’s Disk
Source Institutions
In this activity (on page 2 of the PDF under GPS: Light and Color Activity), learners will see the illusion of colors produced by a rotating black and white image known as Benham’s Disk.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-502.gif?itok=Z60BU9tY)
Single Replacement Micro-Reactions
Source Institutions
In this chemistry activity, learners use common chemicals and metals to explore single replacement reactions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-547.png?itok=xSlYNC2u)
Challenge: Microgravity
Source Institutions
In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-009.png?itok=cvrtDMJ4)
Stained Glass Glue
Source Institutions
In this activity on page 6 of the PDF, learners use glue instead of glass to create artwork that can be hung in a window.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-170.jpg?itok=KpEK8xbw)
Marble Challenge
Source Institutions
In this physics activity (page 6 of the PDF), learners will try to keep a marble in a bottomless cup without touching the marble inside.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-021.png?itok=SIrEi3be)
Iodine Investigators!
Source Institutions
In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-035.png?itok=Z70aajM3)
Exploring A Hydrogel
Source Institutions
In this activity on page 10 of the PDF, learners develop an experiment to answer the following question: "How much water can the hydrogel in a baby diaper hold?" Use this activity to explore polymers,
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-058.jpg?itok=HW2st6_3)
Water Cycle in a Bag
Source Institutions
In this activity, learners create a biosphere in a baggie.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-702.jpg?itok=rOcfJwnz)
Torsion Drum
Source Institutions
In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-851.jpg?itok=AjXoF-zK)
Hydraulic Car
Source Institutions
In this activity, learners build cars using syringes and water-powered hydraulics. Learners construct the car frame out of cardboard and set up a hydraulic system to raise and lower the car.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-879.jpg?itok=8S4xEFD9)
The Ups and Downs of Thermometers
Source Institutions
In this activity, learners examine the parts of a thermometer. After placing a thermometer in hot and cold water, learners look at molecular model animations of the liquid in a thermometer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-145.jpg?itok=dVjivQ94)
Cable Car
Source Institutions
In this activity, learners string a line across the room and build cable cars that can move from on end to the other.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-151.jpg?itok=dMc2_Ki5)
Bouncing Yo-Yo
Source Institutions
In this activity, learners build unique yo-yos, which spin round and round without moving up and down.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-637.png?itok=vE_HhF8l)
Veggies with Vigor
Source Institutions
In this activity, learners try to revive wilted celery. Learners discover that plants wilt when their cells lose water through evaporation. Use this activity to introduce capillary action.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-835.jpg?itok=mqg7XmQk)
Breaking Up with Combustion
Source Institutions
This activity teaches combustion as the interaction of a fuel source and oxygen.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-706.jpg?itok=8aEwQOrL)
Hovercraft
Source Institutions
In this activity, learners build a hovercraft using a paper plate, cup, and simple motor.
![](/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.