Search Results
Showing results 101 to 120 of 175
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-097.jpg?itok=5_q0XCmI)
What Color is Your Air Today?
Learners develop awareness and understanding of the daily air quality using the Air Quality Index (AQI) listed in the newspaper or online.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-014.png?itok=3YcUDIeu)
Urine the Know
Source Institutions
In this activity on page 5 of the PDF, learners compare water with artificial urine to see how urinalysis works. Learners use urinalysis test strips to test for glucose and protein in the fake urine.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-870.jpg?itok=3oGHfmU3)
Yogurt Cup Speakers
Source Institutions
Learners build a simple electromagnet, then use this electromagnet to transform a yogurt container into a working speaker. They can connect their speaker to a radio and listen as it transmits sound.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-160.jpg?itok=48z-YJHY)
A Simply Fruity DNA Extraction
Source Institutions
In this activity, learners extract DNA from a strawberry and discover that DNA is in the food they eat.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-273.jpg?itok=_koxW9fc)
Motorized Balancing Toy
Source Institutions
In this activity, learners build a toy that flies in circles. This activity introduces learners to center of mass, torque, and rotational motion.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-112.png?itok=gK4Bqqsy)
Sink or Swim?
Source Institutions
In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-619.jpg?itok=SX5njDQw)
Exploring Ramps
Source Institutions
This guide features three related ramp explorations in which learners investigate the following science concepts: when placed on a ramp, some objects roll, others slide, and others stay put; the shape
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-608.jpg?itok=OL19PTIX)
Cup Draw (Low Tech)
Source Institutions
In this activity, learners construct drawing machines using a cup, some markers, and a battery pack. The markers act as "legs" for the machine, making a drawing that records as it moves.
Simple Submarine
Source Institutions
Using simple, inexpensive items, learners build and test submarine models.
![](/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-000-000-003-041.jpg?itok=Y4NqV5FI)
Liquid Crystal Thermometers
Source Institutions
In this activity, learners explore liquid crystal thermometers to observe how heat flows by conduction, convection, radiation, and evaporation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-916.jpg?itok=zgbg8Ao5)
What is a Nanometer?
Source Institutions
This lesson focuses on how to measure at the nanoscale and provides learners with an understanding how small a nanometer really is.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-953.gif?itok=PXODLPi7)
How Greenhouse Gases Absorb Heat
Source Institutions
Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-509.jpg?itok=kMIinMA9)
Airplane Wing Investigation
Source Institutions
This activity (located on page 3 of the PDF under GPS: Balloon Fiesta Activity) is a full inquiry investigation into Bernoulli’s principle and airplane wings.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-285.jpg?itok=Kc9ad8IT)
Make a Comet Model and Eat It!
Source Institutions
In this activity, learners build models of comets, using edible materials, to learn about comets' structure.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-929.jpg?itok=E2NuOkGU)
Blimp Jet Challenge
Source Institutions
In this design challenge activity, learners add a jet-propulsion system (i.e. a balloon) to a blimp so it flies straight and far under its own power.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-911.gif?itok=AK2t3Qk_)
Headphone Helper
Source Institutions
In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-419.jpg?itok=vJDCiR4j)
Stretching Wires
Source Institutions
In this activity, learners determine the elastic and plastic properties of different types of metal wires.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-218.jpg?itok=N0knaCqM)
3...2...1 Puff!
Source Institutions
In this activity, learners build small indoor paper rockets, determine their flight stability, and launch them by blowing air through a drinking straw.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-795.gif?itok=8w4NjH15)
Cylindrical Wing
Source Institutions
In this design and physics challenge, learners construct a cylindrical wing, fly it, make modifications, and determine how the changes affect flight patterns.