Search Results
Showing results 101 to 120 of 905
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-736.jpg?itok=BWWpSKeL)
Odors Aloft
Source Institutions
Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-370.jpg?itok=PJQsDOP7)
Dry Ice Comet
Source Institutions
In this activity, dry ice and other items are used to construct a demonstration model of a comet that illustrates the comet nucleus, coma, and tails.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-416.png?itok=eYN_p0GZ)
Dunking the Planets
Source Institutions
In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-221.jpg?itok=eFqkazdt)
Sled Kite
Source Institutions
In this activity, learners build a sled kite that models a type of airfoil called a parawing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-898.jpg?itok=mG-SZMEy)
Carbon Sequestration
Source Institutions
In this inquiry-based lesson, learners measure the biomass of trees, calculate the carbon stored by the trees, and use this information to create recommendations about using trees for carbon sequestra
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-737.jpg?itok=3H7adkKE)
Kool Colors
Source Institutions
Learners investigate how temperature affects the rate of chemical reactions by observing how steel wool reacts with various types of Kool-Aid solutions at different temperatures.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-321.gif?itok=SOxXq6Kx)
Earth's Energy Cycle: Albedo
Source Institutions
In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-668.jpg?itok=R-joBVdY)
The Electric Squeeze
Source Institutions
In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-669.png?itok=W9ELo08r)
Nano Ice Cream
Source Institutions
In this activity/demo, learners discover how liquid nitrogen cools a creamy mixture at such a rapid rate that it precipitates super fine grained (nano) ice cream.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-320.gif?itok=EKIVy6rH)
Going for a Spin: Making a Model Steam Turbine
Source Institutions
In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-127.jpg?itok=G8XzMoTk)
Heating and Cooling of the Earth's Surface
Source Institutions
Learners conduct an experiment to determine the rate at which two materials, sand and water, heat up and cool down.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-899.jpg?itok=Uv_y6G2E)
Build Your Own Robot Arm
Source Institutions
In this lesson, learners develop a robot arm using common materials. Learners explore design, construction, and teamwork, as well as materials selection and use.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-546.jpg?itok=HGQcLN-6)
Iridescent Art
Source Institutions
This is a quick activity (on page 2 of the PDF under Butterfly Wings Activity) that illustrates how nanoscale structures, so small they're practically invisible, can produce visible/colorful effects.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-696.png?itok=D1v45vq0)
Polynomial and Rational Functions: Building Boxes
Source Institutions
In this math lesson, learners explore polynomial and rational function patterns.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-369.png?itok=E6ZWnZeR)
Composting
Source Institutions
In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-287.jpg?itok=gWJYiqDR)
Pre-School Ball Run!
Source Institutions
In this activity, learners use cardboard bases and track tubes to make a ball run to explore the properties of mass, force, and motion.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-902.jpg?itok=fRMSVI3i)
Egg-cellent Landing
Learners recreate the classic egg-drop experiment with an analogy to the Mars rover landing. The concept of terminal velocity will be introduced, and learners perform several velocity calculations.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-536.jpg?itok=6ufDz7qs)
Inkjet Printer
Source Institutions
In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-250.jpg?itok=cjWS3h7P)
What Shape Is It?
Source Institutions
In this activity, learners determine the shape of an unseen object by bouncing a ball off the object.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-258.jpg?itok=c8vzK520)
Do the Mystery Samples Contain Life?
Source Institutions
In this activity (on pages 13-16 of the PDF) learners investigate three mystery samples to see which one contains life. The three samples are sand, sand and yeast, and sand and antacid.