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What is a sink hole? Explain how it is formed and where it is more likely to be found
Sinkholes are common where the rock below the land surface is limestone, carbonate rock, salt beds, or rocks that can naturally be dissolved by ground water circulating through them.

Difficulty: Middle school

What's in the soil?
Mr. Johnston and student teacher Mrs. Carter's 9th grade biology class did a soil experiment on Liberty Campus in Madison, AL by finding the texture, depth, color, structure, moisture and presence of rocks, roots and free carbonates. The class was characterizing the different horizons in the soil in a deep pit and by using the auger method (a shovel like tool that you force in the ground to retrie

Difficulty: Middle school

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Kits for your science fair projects Science fair book Science kit search tool Bigpedia - online encyclopedia

Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.