Month: January 2021

Gravity Does Work

Contributed by Andrea Melendez Introduction We know objects fall when we release them from some altitude (video of falling objects), but how do you suppose a system of objects connected to each other fall when dropped?  Many years ago, a man by the name of Isaac Newton discovered that forces going in the same direction…
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Cloud in a Bottle

Contributed by Alan Feria Introduction The idea of creating a cloud at home sounds rather fascinating yet highly improbable. However, what if I told you that we can do it and that it is much simpler than you thought! Follow along with me and I’ll teach you how to create a cloud within the comfort…
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Thermal Expansion

Contributed by Max Prichard NOTE: This is a more advanced experiment that will require a few more materials and setup steps, but the results are worth it! For some quicker experiments, check out some of the simple experiments in our collection. Introduction You might have heard before that materials tend to expand as they heat…
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Surface Tension

Contributed by Max Prichard Introduction If you’ve ever seen water striders floating on water before, you’ve seen surface tension in action! Surface tension is a force in liquids (not just water) that wants to minimize surface area. Whenever you see little round droplets of water forming, what’s happening is the molecules on the surface are…
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State of the Balloonion

Contributed by Alex Thomas Introduction Experimenting balloons filled with different states of matter (solids, liquids, and gases) can tell us some surprising and interesting things about these! Materials: Balloons Water Faucet/Hose Freezer Setup: Pump up one balloon with air to a small size. Fill up another balloon with water to a similar size. If it’s…
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Fun with Oobleck

Contributed by Austin Hopkins Introduction You may have learned about the states of matter – solid, liquid, and gas. But you may have seen quicksand in a movie or on TV, where a character thinks they’re on solid ground only to find themselves sinking! In this experiment, we will make a material similar to quicksand…
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Electrolysis

Electrolysis of Water, contributed by Japnidh Thakral Introduction Water is an important part of our daily life, but you might know that water is made up of hydrogen and oxygen. According to the periodic table, these elements are gases at room temperature. So one might wonder: how do two gases bond to form a molecule…
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Paper Tube Experiment

Contributed by Mena Yang Introduction: I would like to call it a paper tube challenge.  How to drop a paper tube in the air, and let it stand still on the table?  Materials: A paper tube Procedure: Drop a paper tube vertically to see whether it can stand still on the table Drop a paper…
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Circuit Design

Contributed by Yini He & Duoer Zhang Circuit Design-One Bulb with Two Switches Introduction It’s easy for us to connect a switch to a bedside bulb, right? When we turn on the switch, our little bulb turns on. However, does the following sounds familiar to you? Sometimes you are too lazy to move your body…
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Balloon Thermal Experiment

Contributed by Yutao Zhou Introduction We know that balloons would pop easily, but what if I tell you I could make a balloon survive fire simply by putting some water into it? Materials Balloons Candle Water Procedure 1. First we light a candle 2. Then we find a balloon and fill it up with water.…
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