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Leaves: Extracting Pigments
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In this fun, hands-on autumn activity, learners experiment to discover whether the colored substances in leaves can be separated from the leaves.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-778.jpg?itok=ays5VRr-)
Clean Water: Is It Drinkable?
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In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-062.jpg?itok=2_OrX32x)
Engineered Sports
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In this activity, learners explore the concept of how aerospace engineering has impacted sports, specifically exploring the design of golf balls.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-650.gif?itok=icGlDqOX)
Gel Electrophoresis
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In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-755.jpg?itok=kYauaekx)
What is Light?
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In this four-part activity, learners will discover the exciting world of light--the most important form of energy in our world--and be able to identify and describe different types of light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-966.jpg?itok=ww_83tdG)
Playing with Parachutes
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In this activity, learners explore how parachutes are used to slow down moving objects. Learners work in teams of "engineers" to design and build their own parachutes out of everyday items.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-143.jpg?itok=Tx4Pip5_)
Does Sunscreen Protect My DNA?
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In this laboratory experiment, learners explore how effectively different sunscreens protect yeast cells from damage caused by ultraviolet (UV) radiation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-287.jpg?itok=nwTVo0dv)
Geometry and Algebra: The Future Flight Equation
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In this activity, learners discover how NASA engineers develop experimental aircraft.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-861.jpg?itok=bKqyru6H)
Bone Identification
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This activity (page 3 of the PDF under SciGirls Activity: Dinosaurs) is a full inquiry investigation into fossil hunting and identification.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-456.gif?itok=8DXjbfi8)
Design a Lunar Rover!
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In this team design challenge (page 2-10 of PDF), learners design and build a model of a Lunar Transport Rover that will carry equipment and people on the surface of the Moon.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-442.jpg?itok=wBxbWYFP)
Ripening of Fruits and Vegetables
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In this activity, learners test the rate of ripening fruit and vegetables and use a chemical to inhibit the ripening process.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-494.jpg?itok=PB5QzX_g)
Reusable Rockets
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This activity (located on page 3 of the PDF under GPS: Garbology Activity) is a full inquiry investigation into design optimization using recycled materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-111.png?itok=cm_dErWp)
Pedal Power
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In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-975.jpg?itok=zQZQw7PD)
Engineer a Dam
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In this activity, learners explore the function and engineering of dams and how dams have many uses and solve many problems in the world.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-949.jpg?itok=LNNqxyqE)
Tinkering with Tops
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In this activity, learners explore the history, design and motion of spinning tops. Learners work in teams of "engineers" to design and build their own tops out of everyday items.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-441.jpg?itok=qisLK1ks)
Heavy Lifting
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In this activity, learners work in NASA teams to build balloon-powered rockets using identical parts and compete to launch the greatest number of paper clips to "space" (the ceiling).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-455.gif?itok=aSmlgBzN)
Design a Landing Pod!
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In this team design challenge (page 11-18 of PDF), learners design and build a Landing Pod for a model Lunar Rover (previously built in activity on page 1-10 of PDF).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-496.jpg?itok=E2uYD8qy)
Gravity Fountains
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This activity (located on page 3 of the PDF under GPS: Glaciers Activity) is a full inquiry investigation into the forces of gravity and air pressure.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-315.gif?itok=Tckj8Khu)
My Angle on Cooling: Effects of Distance and Inclination
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In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-573.jpg?itok=cDRrtAaO)
Kites
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This activity (on page 2 of the PDF under SciGirls Activity: Kites) is a full inquiry investigation into how a kite’s shape affects its performance.