Science Studies

Download Ace Your Chemistry Science Project by Robert Gardner PDF

By Robert Gardner

Young scientists will discover primary chemical rules and find out about what occurs whilst an acid and a base combine and which solids are strong conductors of electrical energy. Many enjoyable experiments are nice rules scholars can use for technological know-how reasonable initiatives.

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The ideas in this section will provide suggestions to help you develop your own original science fair project. However, judges at such fairs do not reward projects or experiments that are simply copied from a book. For example, a model of an atom, commonly found at these fairs, would probably not impress judges unless it was done in a novel way. On the other hand, a carefully performed experiment to find out how temperature affects the solubility of different substances would be likely to receive careful consideration.

The mass units (g) will cancel, leaving the volume unit (cm3). Next, divide the volume of zinc on the metal (cm3) by the area of the metal rectangle (cm2). For an added challenge, calculate the thickness of the zinc coating in terms of the number of zinc atoms that form the coat. 66 × 10–8 cm. METRIC SYSTEM In this experiment, you recorded your measurements and performed your calculation using centimeters (cm) and grams (g). These units are part of the metric system. Scientists use the metric system, a system based on tens.

For example, a redox reaction causes rust to form on a car or an iron gate. Rust forms when iron becomes oxidized by the oxygen in the air. As iron is oxidized, it loses electrons to oxygen atoms in the atmosphere. The iron and oxygen react to form a compound called iron oxide, which is commonly known as rust. Other metals can also corrode as a result of a redox reaction, although we do not call the resulting product rust. Obviously, inhibiting the redox reaction prevents the formation of rust.

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