Search Results
Showing results 501 to 520 of 566
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-648.jpg?itok=psrjXzWj)
Exploring Size: Scented Solutions
Source Institutions
This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-567.png?itok=lUElPlOg)
Ins and Outs of Respiration: Determine your Respiratory Rate
Source Institutions
Learners will determine their respiratory rate and explore the factors that affect breathing rate by filling out and using the Respiratory Chart provided in the lesson.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-173.jpg?itok=cODpBA8s)
Make Your Own Soda Pop
Source Institutions
In this chemistry activity (page 8 of the PDF), learners will identify the instances of physical change, chemical change, and solutions while making homemade soda pop.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-826.png?itok=-u8CupLG)
Leaf Living
Source Institutions
In this outdoor fall activity, learners find out what living in or under a layer of leaves is like.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-832.png?itok=UfVarLBF)
Can Fishing
Source Institutions
In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-701.jpg?itok=EtBoRqcN)
Using Bubbles to Explore Membranes
Source Institutions
In this activity, learners use bubbles to investigate the structure and unique properties of cell membranes. Bubbles serve as macroscopic models that mimic the cells' phospholipid bilayers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-952.png?itok=4aTec-cg)
Seeds: Roots and Shoots
Source Institutions
In this indepth hands-on activity, learners build a structure that allows them to observe the growth of roots and the correlation between root growth and stem extension.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-946.jpg?itok=yMw4fgi1)
Dinosaur Count and Sort
Source Institutions
In this activity, learners sort and count different colored plastic dinosaurs by various attributes including tail length, whether or not the dinosaurs have horns, etc.
Butterflies in Space
Source Institutions
The Butterflies in Space Teacher's Guide uses "life in space" to encourage learners to conduct their own open-ended scientific investigations.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-239.png?itok=HNOLB5T_)
Trail Construction
Source Institutions
In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-211.png?itok=tYwpdyV8)
For the Birds
Source Institutions
In this outdoor activity, learners turn the fun of feeding wild birds into an investigation of bird behavior.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-205.png?itok=gSzMiZhd)
The Old White Sheet Trick: Light and Insect Behavior
Source Institutions
In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-311.jpg?itok=wm4MCnTf)
Off Base
Source Institutions
In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-397.png?itok=hN9gU9fu)
Delicious Smelling Chemistry
Source Institutions
In this activity, learners use household materials to investigate and explore their ability to smell an odor.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-670.jpg?itok=PxSvD0vb)
Horton Senses Something Small
Source Institutions
In this story time program, young learners listen to the Dr.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-671.gif?itok=C9PWgzD2)
Biomimicry: Synthetic Gecko Tape Through Nanomolding
Source Institutions
In this activity/demo, learners examine a synthetic gecko tape with micron sized hairs that mimics the behavior of the gecko foot.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-310.jpg?itok=AVrWKFeV)
Stabilization Wedges Game
Source Institutions
This game introduces learners to the scale of the greenhouse gas problem, plus technologies that already exist to dramatically reduce our carbon emissions and prevent climate change.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-569.gif?itok=Y1MoYZwj)
Plant Parts You Eat
Source Institutions
In this food science activity, learners observe different plant-originated foods.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-555.png?itok=xFDa0CuX)
Round, Light and Hollow
Source Institutions
In this activity about bones (page 12 of PDF), learners investigate and compare the weight-bearing capacity of solid and hollow cylinders.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-541.png?itok=2BeS9p2v)
Heart Rate and Exercise
Source Institutions
In this activity about heart health (on page 27 of the PDF), learners measure their heart rates after a variety of physical activities and compare the results with their resting heart rates, and with