Search Results


Showing results 121 to 140 of 287

Source Institutions
Add to list Details
In this activity (12th activity on the page), learners conduct an experiment to demonstrate how muscles are constantly feeding information to the brain about what they are doing.

free Ages 8 - 18 5 to 10 minutes
Source Institutions
Add to list Details
In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.

$1 - $5 per group Ages 11 - 18 1 to 7 days
Source Institutions
Add to list Details
This is a demonstration about how nature inspires nanotechnology. It is easily adapted into a hands-on activity for an individual or groups.

$5 - $10 per group Ages 6 - adult 10 to 30 minutes
Source Institutions
Add to list Details
Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
Source Institutions
Add to list Details
In this activity about the circulatory system and space travel (on page 38 of the PDF), learners use water balloons to simulate the effects of gravity and microgravity on fluid distribution in the bod

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
Source Institutions
Add to list Details
Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.

$10 - $20 per group Ages 8 - adult 10 to 30 minutes
Add to list Details
Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).

$1 - $5 per group Ages 6 - adult Under 5 minutes
Source Institutions
Add to list Details
In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months.

Over $20 per student Ages 8 - 18 1 to 12 months
Source Institutions
Add to list Details
In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
Source Institutions
Add to list Details
In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

$1 - $5 per group Ages 6 - 14 2 to 4 hours
Add to list Details
In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

1 cent - $1 per group Ages 8 - 14 5 to 10 minutes
Source Institutions
Add to list Details
In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.

$10 - $20 per group Ages 6 - 14 45 to 60 minutes
Add to list Details
In this activity (on pages 36-39), learners make a model of a watershed out of paper, then run water down the mountain to simulate how rainfall and pollution affect watersheds.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
Source Institutions
Add to list Details
In this drawing/mapping activity, learners design plots of land while incorporating positive strategies for improving water quality.

$5 - $10 per group Ages 11 - 14 1 to 2 hours
Add to list Details
Learners create a model of a wetland to observe how it absorbs and filters water from the environment.

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
Source Institutions
Add to list Details
In this activity, learners will discover why there are holes in bread.

$10 - $20 per group Ages 8 - 18 30 to 45 minutes
Source Institutions
Add to list Details
This three-part lab helps learners understand the essential principles governing diffusion and osmosis.

Over $20 per group Ages 14 - 18 4 to 24 hours
Add to list Details
Learners discover that their breath contains carbon dioxide, one of the pollutants found in car exhaust.

1 cent - $1 per group Ages 8 - 11 5 to 10 minutes
Source Institutions
Add to list Details
In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to a

$5 - $10 per group Ages 8 - 18
Source Institutions
Add to list Details
In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

Over $20 per group Ages 4 - adult 5 to 10 minutes