Chemical reaction experiment for kids
[DOC File]How Do You Know a Chemical Reaction Has Taken Place
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What were some of the clues that let you know that a reaction was taking place? 2. In Experiment A, did the heat flow from the water into the ammonium nitrate or did the cold flow from the ammonium nitrate into the water? Explain why the water became cold. What do you think the energy was used for? 3. Give a real-life example of how endothermic reactions (reactions that get cold) are used in ...
[DOC File]EXPERIMENT 7
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The aim of this experiment is to use fuel cell to help you develop a tangible understanding of concepts introduced in the lecture, such as chemical and electrical energy, electrochemistry, and thermodynamics. In your current experiment 7, only electrolysis of water in a beaker is discussed. This new addition focuses on the fuel cell which provides electric work. Before we start to discuss the ...
[DOC File]Physical and Chemical Change Experiments
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to the cleaned container from Experiment C. Using the graduated cylinder, measure 10 ml of . vinegar. Add the vinegar to the baking soda container. Observe and record the change. Is this a physical or chemical change? Empty the container, rinse the container and graduated cylinder and save them for experiment F. Experiment F: milk and vinegar
[DOC File]Lab – Evidence for Chemical Change
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The new product can then become a reactant in another chemical reaction. In this experiment you will observe a sequence of changes that occur when a solution that begins as copper (II) nitrate is treated with a series of different reactants. All of the reactions will take place in the same test tube. At each step you will look for evidence that a new substance is formed as a result of a ...
[DOC File]PHYSICAL AND CHEMICAL CHANGES LAB
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Iron rusting and paper burning are two examples of chemical change. This experiment will help you understand the differences between physical and chemical changes and to recognize each type of change when it occurs. The . purpose. of this lab is to distinguish between physical and chemical changes. Equipment and Materials: Goggles CuSO4(5H2O NaCl Well plates Mortar and pestle HCl …
[DOC File]Chemistry - Oregon State University
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A chemical reaction has occurred if two liquids are poured together and a solid (called a precipitate) is formed. This happens when the two chemicals react to form something that is not soluble in water. A common example of this is curdling milk. Adding vinegar to milk causes it to curdle and form a precipitate.
[DOC File]Summer Science Lesson Plan – Reactions
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Talk about how the chemical reaction produced gas (CO2) that made a lot of pressure in the canister. The rocket exploded (a physical reaction) when the pressure became so great that it had to be released, shooting the part of the canister in the air . Ask if they have any questions. Demonstration 2: Take the kids outside, hopefully onto a piece of grass somewhere. Mix the baking soda and ...
[DOCX File]Grade 5 - Molecule Class Experiment.docx.docx
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This is a simple but elegant example of a classic chemical reaction between baking soda and citric acid (lemon juice). When the citric acid combines with the baking soda, a chemical reaction takes place producing carbon dioxide gas (those are the bubbles) and water. You also produce a …
[DOC File]LABORATORY ACTIVITY: OBSERVING CHEMICAL CHANGE
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Experiment with each combination of chemicals to see if you can determine what combination causes each change. You may add water when mixing the two dry chemicals to help the reaction occur. After you have determined the cause for each change, describe what you have discovered below. Data Page: OBSERVING CHEMICAL CHANGE Lab #4: Physical and Chemical Changes. Reaction #1: Add a …
[DOC File]SCIENTIFIC METHOD/VOLCANO EXPERIMENT
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SCIENTIFIC METHOD/VOLCANO EXPERIMENT. The scientific method is a way to ask and answer scientific questions by making observations and doing experiments. - The steps of the scientific method are: Ask a Question. Background Research. Construct a Hypothesis. A hypothesis is a statement that proposes a possible explanation to some phenomenon or event. A hypothesis is a testable statement …
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