Search Results
Showing results 41 to 60 of 812
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-253.png?itok=HUS1L8US)
Charge Challenge
Source Institutions
In this activity, learners explore how objects can have positive, negative, or neutral charges, which attract, repel and move between objects.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-068.jpg?itok=J8ziSr9c)
Mineral Scavenger Hunt
Source Institutions
In this activity, learners participate in a scavenger hunt, searching for and recognizing minerals and products that contain minerals.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-357.gif?itok=blHTfrM_)
Our Sense of Sight: Color Vision
Source Institutions
In this activity, learners investigate color vision as well as plan and conduct their own experiments.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-404.jpg?itok=fNOO45vr)
Planaria Regeneration
Source Institutions
In this experiment with planaria (a type of flatworm), learners will investigate the capability of different body sections to regenerate.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-135.jpg?itok=Pi9Vlw1t)
Salt 'n Lighter
Source Institutions
In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-597.png?itok=26ZaSQm5)
Water Body Salinities I
Source Institutions
In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-121.jpg?itok=RXYYpntg)
Sizing Up Hail
Source Institutions
In this activity, learners will estimate the sizes of balls to learn how to estimate the size of hail. Learners will compare their estimates to the estimates of their peers and the real measurements.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-332.jpg?itok=pYNKIPOI)
Comparing the Density of an Object to the Density of Water
Source Institutions
Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-874.jpg?itok=A5T4J5Ux)
Don't Crack Humpty
Source Institutions
Groups of learners are provided with a generic car base and an egg. Their mission: design a device/enclosure to protect the egg on or in the car as it rolls down a ramp with increasing slopes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-158.jpg?itok=W8Ro9IXo)
Animal & Plant Cell Slides
Source Institutions
In this activity, learners make slides of onion cells and their own cheek cells. Use this lab to teach learners how to prepare microscope slides and use a microscope.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-405.jpg?itok=cTp-kv26)
Adherence to HIV Treatment
Source Institutions
In this activity, learners simulate taking HIV antiretroviral drugs by using Tic Tac mints and Kool-Aid packets.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-814.gif?itok=IicGc_8l)
Incredible Shrinking Shapes
Source Institutions
In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-069.jpg?itok=IPYhDCRy)
Watching Crystals Grow
Source Institutions
Learners will compare the growth rate and appearance of crystals forming on small rocks to those growing on miscellaneous objects. Learners will also investigate how temperature (warm vs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-252.png?itok=eHHR4Mai)
Magnet Mania
Source Institutions
In this activity, learners explore the relationship between electric charges and magnetic fields.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-531.jpg?itok=uIjuRcRp)
Surface Tension Icebreaker
Source Institutions
This is a quick activity (located on page 2 of the PDF under Nasturtium Leaves Activity) about surface tension.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-828.png?itok=OA8tQTc6)
Bean Bugs
Source Institutions
In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-646.png?itok=ZEcHTSEg)
Atoms and Matter (3-6)
Source Institutions
In this activity, learners build models of atoms and molecules, then consider their role in different phases of matter, density, and mixtures and solutions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-333.jpg?itok=LfEYC6s_)
Defining Density
Source Institutions
In this introductory demonstration and activity, learners are introduced to the concept of density as they explore a rock and a wooden block in water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-120.gif?itok=SCjYTx6m)
Quadraphonic Wind
Source Institutions
In this activity, learners discover how the extent of various wind speeds changes in each of the four quadrants around a hurricane.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-134.jpg?itok=O8AVW1dM)
Diet Light
Source Institutions
In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.