Search Results
Showing results 241 to 260 of 705
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-374.png?itok=drQbeaf_)
Kites
Source Institutions
In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-248.png?itok=J97MiK3J)
Visualizing How the Vestibular System Works
Source Institutions
In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-099.jpg?itok=5OFqVwg0)
Pathways with Friends
Source Institutions
Directed by instructional cards, learners kinesthetically model cell communication by acting as components in a cell signaling pathway.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-542.png?itok=5z8-4aVE)
Your Energy Needs
Source Institutions
In this activity about the relationship between food and energy (page 8 of PDF), learners estimate average daily baseline energy (Calorie) needs and energy needs for different levels of activity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-375.png?itok=qpgheNKq)
What Causes Wind?
Source Institutions
In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-230.jpg?itok=lFvJ70aT)
Speedboat
Source Institutions
In this activity, learners build a speedboat using paint paddles, a propeller, and film canister. Learners attach a simple circuit and motor to the boat to power the propellers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-540.png?itok=HwaNpkzE)
Living Clocks
Source Institutions
In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-602.png?itok=Ndvc2Bjw)
Uplifting Force: Buoyancy & Density
Source Institutions
In this investigation, learners explore the force known as buoyancy by placing various objects into water and observing how they behave (for example, which sink more quickly, which float, how much wat
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-232.jpg?itok=cps56lDc)
Marble Drop Game
Source Institutions
Build your own version of a favorite carnival game, in which a marble races down a maze consisting of rows of nails.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-405.gif?itok=5V7gNcC_)
Fork in the Road
Source Institutions
In this activity about electricity, learners identify parallel and series circuits. First, learners examine and label diagrams of complete circuits.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-568.gif?itok=spJ-gsQz)
Do Plants Need Light?
Source Institutions
In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-908.jpg?itok=ibgMidlN)
Paper Drop Design Competition
Source Institutions
Using paper, paper clips, an index card, and tape, teams of learners design flying devices to (1) stay in the air as long as possible and (2) land as close as possible to a given target.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-412.jpg?itok=aenbXsCu)
That's the Way the Ball Bounces: Level 1
Source Institutions
In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, size, and bounce height.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-601.png?itok=uJt8Z79u)
What does Color have to do with Cooling?
Source Institutions
In this demonstration/experiment, learners discover that different colors and materials (metals, fabrics, paints) radiate different amounts of energy and therefore, cool at different rates.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-189.jpg?itok=JkqUtXVQ)
Doughy Physics
Source Institutions
Learners drop two different masses of play dough and observe how long it takes them to hit the ground.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-738.jpg?itok=VmYyAekW)
Salting Out
Source Institutions
In this activity, learners create a mixture of water, alcohol and permanent marker ink, and then add salt to form a colored alcohol layer on top of a colorless water layer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-517.png?itok=BlmZ2mF-)
Traveling Nanoparticles Model
Source Institutions
This is an activity (located on page 3 of the PDF under Nanosilver Activity) about diffusion of small molecules across cell membranes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-163.jpg?itok=WFA6zAk_)
How to Extract DNA From Anything Living
Source Institutions
In this genetics activity, learners discover how to extract DNA from green split peas.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-490.jpg?itok=LCNHN7dm)
Straws and Pins
Source Institutions
In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-358.jpg?itok=cyjIlLUK)
Our Sense of Sight: Eye Anatomy and Function
Source Institutions
In this activity, learners investigate the sense of sight and develop and conduct their own experiments.