Search Results
Showing results 21 to 40 of 377
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-861.gif?itok=umup6nux)
Modeling Limits to Cell Size
Source Institutions
This investigation provides learners with a hands-on activity that simulates the changing relationship of surface areas-to-volume for a growing cell.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-120.gif?itok=SCjYTx6m)
Quadraphonic Wind
Source Institutions
In this activity, learners discover how the extent of various wind speeds changes in each of the four quadrants around a hurricane.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-791.gif?itok=uKnL0c9f)
Plot the Dot: A Graphical Approach to Density
Source Institutions
In this activity, learners work in groups to determine the mass and volume of four samples: glass marbles, steel washers or nuts, pieces of pine wood, and pieces of PVC pipe.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-961.gif?itok=kZd14dth)
The Blindfolded Walk
Source Institutions
In this activity, learners work in teams to study the observation skills essential to scientific research.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-694.png?itok=eFhbFsqa)
Inverse Functions: Pennies, Pressure, Temperature, and Light
Source Institutions
The major goal of this math lesson is to have learners collect data from a variety of experiments, determine what models best fits their data, and explain why their models are best.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-322.png?itok=koOK-mvw)
Plugged in to CO2
Source Institutions
In this activity, learners investigate various appliances and electronics, discovering how much energy each uses and how much carbon dioxide (CO2) is released to produce that energy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-568.jpg?itok=qQND_NVP)
Delta, Delta, Delta
Source Institutions
In this experiment, learners construct an equilateral triangle using graph paper, a pencil, protractor and ruler. They also make a "laser triangle" using a laser pointer and front-silvered mirrors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-336.jpg?itok=SvcruHaG)
Now or Later: The "Recency/Primary" Effect
Source Institutions
In this activity (18th on the page), learners conduct an experiment to examine memory.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-125.jpg?itok=FtbZoQla)
How Far?
To learn how friction affects motion, learners build a measurement tool from a rubber band and other simple materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-656.jpg?itok=YmnK7-EG)
Morphing Butterfly
Source Institutions
In this activity, learners explore how nanosized structures can create brilliant color.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-486.jpg?itok=SG3AxPqq)
Radioactive Decay of Candium
Source Institutions
In this simulation, learners use M&M™ candy to explore radioactive isotope decay.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-695.png?itok=kRMK2ZwQ)
Linear Functions: Mystery Liquids
Source Institutions
In this math lesson, learners analyze the density of liquids in order to explore linear functions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-960.jpg?itok=Dpczp2YX)
Do Your Own Dig
Source Institutions
In this outdoor archaeology activity, learners use mathematical skills and scientific inquiry to generate and process information from their own excavation site.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-335.jpg?itok=FA3aEl9g)
The Space Place
Source Institutions
In this activity (23rd on the page), learners conduct an experiment to examine memory and learning.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-654.jpg?itok=2asbLN2W)
Gravity Fail
Source Institutions
In this activity, learners try pouring water out of a regular cup and a miniature cup. It’s harder than it sounds! Learners discover that different forces dominate at different size scales.
![](/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-000-000-003-655.jpg?itok=g01f1ZG7)
Gummy Shapes
Source Institutions
In this activity, learners use chemistry to “self-assemble” gummy shapes. Learners discover that self-assembly is a process by which molecules and cells form themselves into functional structures.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-255.png?itok=D9_EKQ86)
How Quick Are Your Responses?
Source Institutions
In this activity (on page 134 of the PDF), learners explore reaction time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-685.gif?itok=9j_pb0nH)
Illuminations on Rates of Reactions
Source Institutions
In this activity, learners investigate the speed of chemical reactions with light sticks. Learners discover that reactions can be sped up or slowed down due to temperature changes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-922.jpg?itok=yqPmRiT-)
Wild Sourdough
Source Institutions
In this activity, learners explore chemistry and the microbial world by making their own sourdough starter and bread at home using only flour and water.