1
Calcium is a chemical that is always grabbing onto other chemicals. One of the most common chemicals connected to calcium is carbonate. Together, the calcium and the carbonate are called calcium carbonate. Calcium carbonate is in eggshells, seashells, limestone, and many other materials. In this...
Grade Level   3 4 5
Classroom Activities Curricula and Instruction
Save to List
2
Carbon dioxide (CO2) is essential for life on Earth. Scientists have ways of testing the amount of CO2 in the atmosphere. In this activity, you can do your own test for CO2!
Grade Level   3 4 5
Classroom Activities Curricula and Instruction
Save to List
3
Acids are substances that have a sour taste and strong smell. Lemon juice and vinegar are common acids. Acid rain is formed when pollution inthe air mixes with the rain and falls to the ground. In this activity, vinegar will represent acid rain, and an antacid tablet will represent a marble statue...
Grade Level   3 4 5
Classroom Activities Curricula and Instruction
Save to List
4
People interact with Earth’s water (hydrosphere) in a variety of ways. We depend upon water for survival, but we also need it to keep clean and help avoid spreading disease. On our ever-changing Earth, the supply of fresh water can be limited for some humans. We need good techniques to make the...
Grade Level   4 5 6 7 8 9
Classroom Activities Curricula and Instruction
Save to List
5
All of the water on Earth is part of a never-ending cycle called the water cycle. Water evaporates (becomes gas) from the surface of the Earth, condenses in the atmosphere as clouds, falls to the Earth as precipitation and then evaporates again, starting the whole process over. In this activity,...
Grade Level   3 4 5
Classroom Activities Curricula and Instruction
Save to List