user: Create a lesson plan for grade 3 science

assistant: For general scientific concepts, let's start with basic kinematics, gravity, electricity, and magnetism. Gravity should be demonstrated with a spacetime table, and kids could try to predict the time for different masses to fall into the center. Kinematics could be demonstrated with newtons cradle, which can be modified so that the size of the balls on each end are different, or there may be multiple balls. There, the kids could predict how far the ball on the end would go with math. Electrostatic force can be taught with a low output Tesla coil. Aluminum bowls on top of the Tesla coil can demonstrate like charges repelling, and magnets can be used nearby to show how the electrostatic force and magnetic force don't normally interact. However, an electromagnet could show the conversion. After that, they can play with snap circuits circuit boards and see what they can make.
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For earth and space, they can learn about the order of all the planets and moons, and have different mnemonics for remembering them. The weather, climate, and geology on different plant should be taught too, including earth, as well as the different spacecraft we sent, what their mission were, and what they achieved.
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For biology, they should learn interesting traits about the different species in the environment around them, as well as the food chain and how they got there via evolution, and may collect plants for later observation. They should also look at different cells under a microscope that are under different states of mitosis to understand how cells divide, as well as the different proteins involved in inducing and carrying it out, especially if those signal proteins don't affect humans and can be bought online, then applied to a plant to make the applied area grow.
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Economics may be taught as something they'd actually use with math later in life. One example would be viewing the prices of goods over time to determine when to buy, and actually buying items for class using gift cards, that are restricted to specific areas or items. They could also see how price rose or fell after buying an item, and approximate the total demand for that item.

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The lessons are in that order because it allows the students to start in the classroom, then learn to do things outside more and more. Most also include demonstrations the students can interact with, which should be much more engaging and memorable for many students. Also, at grade 3, most students are still learning multiplication and addition, so it would be a good idea to work those into the different scientific concepts. If any student is particularly interested in any of the subjects or is particularly good at them, you should also pay attention to people or events related to them, such as community outreach events by astronauts in the ISS, invite the owner or manager of the store to come in and talk about how the prices changed, or having an actual electrician come and look at some of the circuit board designs made by the kids. You can also provide information on any related clubs or groups they could join later in middle school or high school, or online if they're allowed, to work more on their passion.