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We're going to spend our science class this week talking about chemical reactions and balancing equations. There are almost always questions about balancing equations on the GED test.
We're going to spend our science class this week talking about chemical reactions and balancing equations. There are almost always questions about balancing equations on the GED test.
I'm going to be honest with you: when I was in school, I struggled with this, but I want you to know that it is doable! This might be easy for some of you, but if you have a hard time at first, don't worry! We'll work on it together.
I'm going to be honest with you: when I was in school, I struggled with this, but I want you to know that it is doable! This might be easy for some of you, but if you have a hard time at first, don't worry! We'll work on it together.
Check out these videos for an introduction to chemical reactions.
Check out these videos for an introduction to chemical reactions.
(The sound in the video on the left isn't very good, but the content is. If you're having trouble hearing, just focus on what is written on the screen)
So a chemical change is when we change the actual structure of something. Put another way, we make something new. When you burn wood, you don't have wood again at the end. You have ash and embers, something new that didn't exist before. That's a chemical change.
So a chemical change is when we change the actual structure of something. Put another way, we make something new. When you burn wood, you don't have wood again at the end. You have ash and embers, something new that didn't exist before. That's a chemical change.
Read more about chemical reactions below, then email the answers to the questions that follow.
Read more about chemical reactions below, then email the answers to the questions that follow.
Email me your answers! iolson@tacomacommunityhouse.org
Email me your answers! iolson@tacomacommunityhouse.org
1. What is a chemical reaction?
1. What is a chemical reaction?
2. Write a general chemical equation that shows the relationship of products to reactants in a chemical reaction.
2. Write a general chemical equation that shows the relationship of products to reactants in a chemical reaction.
3. Compare and contrast exothermic and endothermic chemical reactions.
3. Compare and contrast exothermic and endothermic chemical reactions.
There are many kinds of chemical reactions, including those that take place inside the bodies of plants, animals, and other living things. Read and watch for more information, then email me the answers to the questions below.
There are many kinds of chemical reactions, including those that take place inside the bodies of plants, animals, and other living things. Read and watch for more information, then email me the answers to the questions below.
The video is a little bit more about biology (or biochemistry) than chemical reactions, but I think it's interesting and useful. If you don't get everything they're talking about, that's OK! Just focus on the big idea.
The video is a little bit more about biology (or biochemistry) than chemical reactions, but I think it's interesting and useful. If you don't get everything they're talking about, that's OK! Just focus on the big idea.
Email me your answers! iolson@tacomacommunityhouse.org
Email me your answers! iolson@tacomacommunityhouse.org
1. What is an enzyme?
1. What is an enzyme?
2. How are biochemistry and metabolism related? .
2. How are biochemistry and metabolism related? .
3. Which type of reaction—catabolic or anabolic—do you think occurs when your body digests food?
3. Which type of reaction—catabolic or anabolic—do you think occurs when your body digests food?
4. How do enzymes work?
4. How do enzymes work?
5. What is activiation energy?
5. What is activiation energy?
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