Objective: To test for the presence of the carbonate ion.Materials: Sodium carbonate salt. Dilute hydrochloric acid. Distilled water. Magnesium sulfate solution. Test tubes.Procedure: Place a small amount of solid sodium carbonate in a test tube. Add a few drops of dilute hydrochloric acid to the tu......

Exothermic and Endothermic Reactions

Meiosis

Objective: To extract DNA from strawberry cells and observe it with the naked eye.Materials: Ripe strawberry _ Resealable plastic bag _ Dish soap _ Table salt _ Warm water _ Cheesecloth _ Glass cup _ Alcohol _ Wooden stickSteps: Place the strawberry in the plastic bag and mash it thoroughly. Mashing......

This experiment demonstrates how adding a different element to a metal affects the arrangement of atoms and increases its hardness, using a simple bubble model.

An interactive activity where you identify and place different parts of the human body in their correct positions.

The magnetic properties of the first transition series elements

Comparison of mammalian teeth

Electron distribution in the main energy levels

An experiment to understand the difference between the concepts of distance and displacement.

Amphoteric Oxides

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Chordates are animals with a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail at some stage of development

Fish Brain

Microscope Parts

An experiment to demonstrate how a semipermeable membrane works, to illustrate diffusion and size-based selectivity of molecules, and to simulate the kidney’s role in removing small wastes from the blood.

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Investigating Whether Water Conducts Electricity