Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to...

Ninth graders examine the rate of motion and changes in motion using a ramp and a rolling object. They conduct the demonstration, determine the average speed, and describe how a moving object can have zero acceleration and deceleration.

As a follow-up from the previous lesson, young environmentalists discuss the benefits of water filtration and whether or not it's the best option. Other alternatives including air stripping, bioremediation, and phytoremediation are...

Physics learners studying force and acceleration practice solving eight problems with this assignment. They calculate acceleration and deceleration, net force, and distances required for stopping a moving object. Kinematics equations and...

Students examine the importance of good quality safety gear. In this investigative lesson, students will tests various polymers, collect data, and analyze the data to determine which polymer is best for safety helmets. They will design a...

Pupils comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...

Learners use a Colorimetric test to measure pH and gain the importance to life in an aquatic ecosystem pH is. They explore the dramatic effect pH level can have on a water body. Learners test the pH level of many water samples.

Students investigate the relationship between dissolved oxygen and organic materials and aquatic organisms. This is a 3-lesson series in which students explore dissolved oxygen and then design an experiment testing the effects of changes.

Learners define and discuss salinity, conduct classroom experiment to determine salinity of water sample by using hydrometer, record predictions, and demonstrate understanding of how salinity influences object's ability to float in water.

Sixth graders conduct a variety of assessments at a local stream to determine if it is a suitable habitat for salmon. They measure temperature, tubidity, dissolved oxygen, pH levels, bacteria and nutrients. In this unit, 6th graders work...

Pupils work in pairs to design a lever. They conduct experiments using a penny and nickel to explore the uses of a lever.