By Robert Gardner
Solids, beverages, and gases–oh my! research all in regards to the states of topic and primary actual rules with the thrill technological know-how experiments during this e-book. discover when you could make water move upward, if carbon dioxide is heavier than air, and extra! Many experiments contain rules scholars can use for his or her technology reasonable.
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Additional info for Ace Your Physical Science Project
Your question may also arise from an earlier experiment or from background reading. Once you have a question, you should make a hypothesis. Your hypothesis is a possible answer to the question (what you think will happen). Once you have a hypothesis, it is time to design an experiment. In most cases, it is appropriate to do a controlled experiment. This means that there are two groups treated exactly the same except for the single factor that you are testing. That factor is often called a variable.
Cohesion is the property that keeps the molecules of a liquid together and, in combination with surface tension, helps to make these many shapes possible. 1, cohesion is the attraction that exists between molecules in a liquid. Adhesion is the attraction between a liquid and any solid that it touches. It is the property that causes a raindrop to stick to a windowpane and bubbles of air to adhere to the side of a bathtub. It helps liquids to stay in containers, and it is necessary for capillary action to take place.
3 Liquids in Liquids Materials: water small glass or beaker rubbing alcohol spoon or other stirring device cooking oil stopwatch or clock or watch with a second hand liquid detergent eyedropper vial or test tube molasses small, tall jar Pour some water into a small glass or beaker. Add about the same amount of rubbing alcohol and stir. Do alcohol and water mix to form a single phase? That is, does the mixture appear to be the same throughout? Repeat the experiment with water and cooking oil. Do cooking oil and water mix to form a single phase?