Instant Cold Pack Model
Directions: Now that you have learned more about what happens in a chemical change, you are going to create a new model of what happened in the instant cold pack we saw at the beginning of this unit. Make sure you include the following:
Reactants
Products
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Directions:
1. Copy the table below into your journal. Title the page "Properties of Reactants and Products." 2. Conduct research in this table to learn about the properties of our reactants and the products they make in the instant cold pack. 3. When you are finished, answer the following questions in your lab notebook underneath your table. Please restate the question as part of your answer. a. What do you observe about the properties of our reactants and products? b. The reactants and products have very different properties. Why do you think that is? Think about what you know about the atoms. c. Come up with another rule for chemical change regarding the properties of reactants and products. 4. When you are done and checked in, click "Read More." Add any new information to your explanations. Directions:
1. Divide your page in half from left to right (not top to bottom). Title the page "Endothermic vs. Exothermic" 2. Using the chemical reaction that is drawn below, show and explain an endothermic and exothermic reaction. This means you will have to draw the reaction below TWICE. Explain what is happening in terms of thermal energy, chemical bonds, reactants, products, and atoms. Use your notes in your journal to help you. 3. Once you are done and have checked in with a teacher, click "Read More." to check your answer. Make any corrections you need to. Do not erase any old thoughts. Directions:
You are going to create a model of the endothermic and exothermic reactions we saw in the lab (baking soda + vinegar; elephant toothpaste). You need to show what is happening to the reactant molecules and how energy is released and absorbed to create the products. Here are the equations for each of those reactions. Baking Soda and Vinegar C2H4O2 + NaHCO3 ----> NaC2H3O2 + H2O + CO2 Elephant Toothpaste 2 H2O2 ----> 2H2O + O2 Remember to show what is happening with the molecules and energy associated with breaking and reforming bonds. Here is the link to the animations we watched to help you! Today is the 100th day of school! We are going to look at a scientific event that happened 100 years ago - The 1918 Spanish Flu. You are going to create a small visual of the Spanish Flu You need to include the information below:
Use the link and video below to help you answer your questions! Spanish Flu Directions:
I have included the link to the animation of molecules in a reaction that you saw in our discussion to help you out! Directions:
1. Create a double entry. Split your page down the middle. Label the left side "My First Thoughts" and the right side "My New Thoughts." Title the page "Counting Atoms in Reactants and Products." 2. Look at the table below. Explain what is wrong with it AND WHY. Also explain what you would have to do to make it more accurate. Include your understanding about what happens to molecules in chemical reactions to support your answer. 3. Click "Read More." to see what is more accurate and why. Directions:
1. Create a double entry on your next blank page. Split your page down the middle. Label the left side, "My first thoughts" and the right side "My new thoughts." Title the page "Atoms and Molecules" 2. On the left side of your entry, draw each molecule below. This should be a review, but you can use the notes you have in your journal to help you. Explain each of your molecules to the best of your ability. 3. After you have checked in with Ms. Saikin or Miss Stahl, you may click, "Read More." |
NGSS Performance ExpectationsMS-PS1-2.Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred. |