Search Results
Showing results 381 to 400 of 565
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-285.jpg?itok=Kc9ad8IT)
Make a Comet Model and Eat It!
Source Institutions
In this activity, learners build models of comets, using edible materials, to learn about comets' structure.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-929.jpg?itok=E2NuOkGU)
Blimp Jet Challenge
Source Institutions
In this design challenge activity, learners add a jet-propulsion system (i.e. a balloon) to a blimp so it flies straight and far under its own power.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-636.jpg?itok=rFDEdnGi)
Exploring Properties: Surface Area
Source Institutions
This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-905.jpg?itok=_vqS2tjZ)
Balloon Drive
Source Institutions
In this challenge, learners make a helium balloon hover in one spot and then move it through an obstacle course using air currents.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-911.gif?itok=AK2t3Qk_)
Headphone Helper
Source Institutions
In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-673.jpg?itok=Ph0HJGFs)
Gieant Sieve Sorter
Source Institutions
This Exploratorium activity explores size and scale. Through four levels of screen sizes, learners can sort out objects of different sizes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-783.gif?itok=5RthtE_j)
Toilet Model
Source Institutions
In this activity, PVC pipe, plastic water bottles and vinyl tubing are used to make a simple working toilet model. The model shows the role of a siphon in the flushing of a toilet.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-640.png?itok=OTTfWpUH)
Liquid Crystals Interact with Light!
Source Institutions
In this two-part activity, learners explore the properties of liquid crystals, which are responsible for why mood rings change color.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-862.jpg?itok=kbDNMXLR)
Wind Power: Creating a Wind Generator
Source Institutions
This lesson challenges groups of learners to design and construct a wind generator with the most electrical output.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-218.jpg?itok=N0knaCqM)
3...2...1 Puff!
Source Institutions
In this activity, learners build small indoor paper rockets, determine their flight stability, and launch them by blowing air through a drinking straw.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-542.png?itok=0djAEvu4)
Cookie Surface Area
Source Institutions
This is an activity (on page 2 of the PDF under Surface Area Activity) about surface area to volume ratio.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-595.jpg?itok=eqbdXp5Z)
Weather Forecasting
Source Institutions
This activity (on page 2 of the PDF under SciGirls Activity: Forecasting) is a full inquiry investigation into meteorology and forecasting.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-123.jpg?itok=8rEFdZ-Q)
Breaking Beams
Learners investigate stress and strain by designing, building, and testing beams made from polymer clay.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-651.jpg?itok=voooaDLp)
Ready, Set, Fizz!
Source Institutions
In this activity, learners explore the chemical reaction between water and effervescent antacid tablets. This hands-on activity models how a material can act differently when it's nanometer-sized.
![](/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-000-000-003-650.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-000-000-001-594.jpg?itok=OQzO6nVI)
LEGO Robots
Source Institutions
This activity (on page 2 of the PDF under GEMS Activity) is a full inquiry investigation into technology design and testing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-319.gif?itok=pX61rIWl)
As the Rotor Turns: Wind Power and You
Source Institutions
In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed from
![](/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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-795.gif?itok=8w4NjH15)
Cylindrical Wing
Source Institutions
In this design and physics challenge, learners construct a cylindrical wing, fly it, make modifications, and determine how the changes affect flight patterns.