Search Results
Showing results 401 to 420 of 705
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-122.gif?itok=4sTtQDK5)
Updrafts in Action
Source Institutions
In this weather activity/demonstration, learners watch as a ping pong ball is suspended in a stream of air supplied by a hair dryer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-331.jpg?itok=xrvKT6Mb)
Investigating the Line
Source Institutions
In the related activity called "Colors Collide or Combine," learners are intrigued by the apparent "line" that forms where colors from M&M coatings meet but do not mix.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-644.jpg?itok=nExLX9hb)
Biochemistry Happens Inside of You!
Source Institutions
In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-888.jpg?itok=ebQmLGE7)
The Squeeze is On
Source Institutions
Each group of learners uses everyday materials, such as paper, toothpicks, and tape to design and construct a structure intended to support the weight of a cinder block for 30 seconds.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-356.gif?itok=o1d10lQO)
Our Sense of Sight: How We Perceive Movement, Depth and Illusions
Source Institutions
In this activity, learners investigate visual perception as well as plan and conduct their own experiments.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-136.jpg?itok=IZPSydOx)
We all Scream for Ice Cream
Source Institutions
In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
What Does Life Need to Live?
Source Institutions
In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).
No bones about it!
Source Institutions
This is an activity (located on page 3 of the PDF) about the mixture of materials in bone and how they affect its strength.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-687.jpg?itok=kWflrAgh)
Spinning Illusions
Source Institutions
In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-750.jpg?itok=0k_dEQga)
Shapes and Angles
Source Institutions
In this activity (page 7 of PDF), learners will identify the general two-dimensional geometric shape of the uppermost cross section of an impact crater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-693.jpg?itok=bg_DzERZ)
Gymnast
Source Institutions
In this physics activity, learners build a toy with a figure that spins around like a gymnast on the high bar.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-647.jpg?itok=dSDFLha9)
Mirror Image
Source Institutions
In this activity, learners investigate procedural memory.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-405.png?itok=XvApTdyE)
Illuminating Luminescence
Source Institutions
In this activity, learners compare and contrast different forms of luminescence by observing how chemiluminescence, phosphorescence, and fluorescence produce or emit light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-363.png?itok=N-7PYah7)
Let's Make Molecules
Source Institutions
In this activity, learners use gumdrops and toothpicks to model the composition and molecular structure of three greenhouse gases: carbon dioxide (CO2), water vapor (H2O) and methane (CH4).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-554.png?itok=5zN9zMEk)
Size and Scale: Probing and Predicting
Source Institutions
In this quick activity about predicting (located on page 2 of the PDF under Where's Nano?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-892.jpg?itok=fJ-Na2Dd)
Dusting For Fingerprints
Source Institutions
In this activity, learners become detectives and use chemistry to investigate fingerprints.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-110.png?itok=JIU6fpbG)
House Warming
Source Institutions
In this physical sciences activity, learners explore how passive solar design increases energy efficiency.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-478.jpg?itok=GmJqiGRe)
FlyBy Math: Distance-Rate-Time Problems in Air Traffic Control
Source Institutions
In this small-group activity, learners assume the roles of pilots, air traffic controllers, and NASA scientists to solve five Air Traffic Control (ATC) problems.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-104.png?itok=5OKbZxPD)
Breaking Point
Source Institutions
In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-529.gif?itok=n1Zt3RLL)
Rainbow in the Room
Source Institutions
This activity generates learner excitement about light through the creation of a room-sized rainbow.