Search Results
Showing results 241 to 260 of 445
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-318.png?itok=S0BcZ6CK)
Let's Look at Water & the Scientific Method
Source Institutions
This activity has learners observe water and compare it to other liquids.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-692.gif?itok=p-QwwR6s)
Rutherford Roller
Source Institutions
In this activity, learners make a black box device that serves as an excellent analogy to Rutherford's famous experiment in which he deduced the existence of the atomic nucleus.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-743.png?itok=fwuZlYYj)
Lengths of Ladybugs
Source Institutions
In this math lesson, learners explore the concept of using units to measure length.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-862.jpg?itok=0xp3BtLO)
Fossil Age Estimation Model
Source Institutions
In this activity (page 1 of the PDF under SciGirls Activity: Dinosaurs), learners will model how paleontologists estimate the age of fossil discoveries by extracting “fossil” playing cards from newspa
![](/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-000-000-002-687.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.
Building a Community From the Ground Up
Source Institutions
In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit
![](/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-000-000-004-388.jpg?itok=unfoQNRe)
Trash Talkin'
In this activity, learners collect, categorize, weigh and analyze classroom trash and discuss ways that engineers have helped to reduce solid waste.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-694.jpg?itok=yTjZAaSE)
Geometry Construction: Polyhedral Playthings
Source Institutions
In this activity, learners create 3D geometric shapes using straws and pipe cleaners.
![](/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-000-000-002-800.jpg?itok=mNB8TUR1)
Determining the Amount of Transpiration from a Schoolyard Tree
Source Institutions
In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day.
![](/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-000-000-004-104.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-000-000-002-643.jpg?itok=sKLTLgt6)
Luminescence
Source Institutions
In this two-part activity about luminescence, learners explore the chemistry that happens inside glow sticks and other light producing reactions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-444.jpg?itok=uU-wso7h)
Where Does the Wind Blow?
Source Institutions
In this activity, learners investigate wind by comparing the force of wind in different locations. Learners build wind-o-meters out of wooden sticks and strips of paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-322.jpg?itok=LeLpVjp8)
Curious Crystals
Source Institutions
Learners carefully look at four known household crystals.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-096.jpg?itok=L8PXzkZP)
Color Me Blue
Source Institutions
In this activity, learners add dilute bleach solution to water that has been dyed with yellow, blue, and green food color.