Showing results 1 to 6 of 6
Water Quality and pH Levels in Aquatic EcosystemsAdd to list Details
In this fun and in depth hands-on experiment, learners test various liquid samples (distilled water, lemon juice, vinegar, and baking soda mixed with water) to determine their pH levels and identify e
What's in the Water?: Biotic and Abiotic Elements in Aquatic EcosystemsAdd to list Details
In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.
Sand ActivityAdd to list Details
In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from.
Exploring an Ecosystem
In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails.
Freshwater EcosystemsAdd to list Details
In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.
Beach BucketsAdd to list Details
In this activity, learners explore a bucket of sand and beach objects.