Search Results
Showing results 81 to 100 of 144
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-593.gif?itok=Bd-xvite)
Why do Raindrops Sometimes Land Gently and Sometimes Land with a Splat?
Source Institutions
In this activity, learners examine raindrop bottles (prepared ahead of time) to observe in slow motion the behavior of falling droplets and explore concepts such as drag and terminal velocity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-242.jpg?itok=G7PWtc1G)
Exploring Moisture on the Outside of a Cold Cup
Source Institutions
In this activity, learners explore the relationship between cooling water vapor and condensation. Learners investigate condensation forming on the outside of a cold cup.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-141.jpg?itok=4vQT50OB)
Leaf it to Me
Source Institutions
In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-756.png?itok=MbViWZw1)
Who Can Harvest a Walleye?
Source Institutions
This activity focuses on interactions within Earth systems and the effects of human activities. In this activity learners build a biomass pyramid.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-223.png?itok=kPxkBZ8w)
Help Wanted
Source Institutions
In this interactive board game, learners "hire" different types of scientists to help canine character Ruff Ruffman solve unusual problems.
When is a Glass of Water Really Full?
Source Institutions
In this activity, learners see how many coins they can add to a full glass of water before the water overflows.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-519.jpg?itok=DRK1gCWE)
Scale Model of Sun and Earth
Source Institutions
In this activity, learners explore the relative size of the Sun and Earth as well as the distance between them.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-078.jpg?itok=xbxst93a)
Hot Stuff!: Investigation #2
Learners test two jars containing hot water, one covered with plastic and one open, for changes in temperature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-578.png?itok=Vd6I9maN)
Shadow Play
Source Institutions
In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-719.gif?itok=L9UJrPKx)
Inverted Bottles
Source Institutions
In this activity, learners investigate convection by using food coloring and water of different temperatures.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-282.png?itok=ntwezJoy)
Telescopes as Time Machines
Source Institutions
This fun, nighttime hands-on astronomy activity lets learners explore how long it takes for light from different objects in the universe to reach Earth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-646.gif?itok=epVlFWh8)
Sizing Up Temperature
Source Institutions
In this activity, learners explore Charles' Law in a syringe.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-093.gif?itok=M-8h0YN1)
Make Your Own Deep-Sea Vent
Source Institutions
In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.
Let's Go Ice Fishing
Source Institutions
In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-246.png?itok=wJ75YDaY)
Building a Magic Carpet
Source Institutions
In this activity (page 89 of the PDF), learners compare and contrast pitch and roll motions by using a Magic Carpet maze similar to one that was used for Neurolab investigations about microgravity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-565.png?itok=C5k26NWy)
Breathing Machine
Source Institutions
In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-625.jpg?itok=QKpkhPf3)
Ocean in a Bottle
Source Institutions
In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-057.jpg?itok=X60Mv-na)
Reunite Pangaea
Source Institutions
Learners cut out pictures of continents and attempt to put them together to form Pangaea, the supercontinent present on the Earth approximately 300 million years ago.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-144.jpg?itok=qvl2aHil)
Melts in Your Bag, Not in Your Hand
Source Institutions
In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-150.jpg?itok=8n6a8Z65)
Heavy Air
Source Institutions
In this activity and/or demonstration, learners illustrate visually and physically that air has weight. Learners balance two equally-inflated balloons hanging from string on a yard stick.