Search Results
Showing results 161 to 180 of 329
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-694.jpg?itok=KlLjKza_)
Pipes of Pan
Source Institutions
Create an instrument that you don't play--you just listen to it through tubes of various lengths.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-612.gif?itok=7y0IEX0t)
Afterimage
Source Institutions
In this activity about vision and optical illusions, learners conduct a simple test to demonstrate how our eyes create "afterimages." Learners stare at a black cardboard bat for at least 30 seconds an
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-657.jpg?itok=niI3vpw5)
Color Table: Color your perception
Source Institutions
Look at pictures through different color filters and you'll see them in a new way. People have used color filters in beautiful photography or sending secret messages.
Many Seeds: Estimating Hidden Seeds
Source Institutions
In this activity, learners will estimate how many seeds are in a fruit or vegetable, then count to find out. The result: mix estimation with healthy eating.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-275.jpg?itok=eIDujwUZ)
A Universe Without Supernovae
Source Institutions
This fun and simple hands-on astronomy activity illustrates the value of supernovae in the universe.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-324.png?itok=qn2n7CSP)
Magic Disc
Source Institutions
In this activity, learners create an optical illusion by spinning two attached cups. A round ball seems to magically appear when the cups spin.
Pour Some: Measure Serving Size
Source Institutions
Make snack time into measuring time and learn to read Nutrition Facts labels. Try this when you’re using “pourable” foods, such as cereal, yoghurt, or juice.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-654.jpg?itok=UeYDwgEB)
Circles or Ovals?
Source Institutions
This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-063.png?itok=IF5MVzvJ)
Blink
Source Institutions
In this self-measuring activity, learners observe and record how many times a minute they blink, take a breath, and chew, as well as how many times a minute their heart beats.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-030.jpg?itok=cfpJ7z2Z)
Tomb Mapping
Source Institutions
In this activity, learners examine the culture and history of the tomb site.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-124.png?itok=d3rta_uj)
Make a Shaker
Source Institutions
This hands-on activity shows you how to make a shaker -- a small instrument with a big sound! Fill it with beads or even pennies for a cool sound.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-516.jpg?itok=kG534cRm)
Carbon Cycle Poster
Source Institutions
In this activity, learners gain knowledge about how carbon moves through all four of the Earth’s major spheres (biosphere, hydrosphere, atmosphere, and lithosphere), and understand how humans influenc
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-553.gif?itok=SiakAoYV)
Make Money Appear Before Your Eyes
Source Institutions
In this optics activity, learners use water to make a coin "appear" and "disappear." Use this activity to demonstrate how light refracts and introduce light as waves.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-209.png?itok=L4CI__ys)
Screaming String Thing
Source Institutions
In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-224.jpg?itok=dPt4YqxX)
Mirror, Mirror
Source Institutions
In this activity, learners discover that it is difficult to trace a curve by using its reflection in a mirror. Use this activity to discuss how the brain works.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-218.gif?itok=L6ZKmn9O)
Creating a Soil Map
Source Institutions
In this activity, learners investigate soil conditions by creating a soil map. Learners record soil characteristics and compare the conditions of soil in different grid sections.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-741.png?itok=P1_vNczp)
DNA Extraction: Look at your genes!
Source Institutions
Extract your DNA from your very own cells! First, learners swish salt water in their mouth to collect cheek cells and spit the water into a glass.
![](/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-000-000-003-480.png?itok=P3TEy8kb)
Traveling Tapeworm
Source Institutions
In this "gross" activity (on pages 34-46), learners make a life-size model of a human digestive tract, and follow the life of a beef tapeworm as it makes its way through.