Middle School Science Experiments (Page 63)

How Does a Wind Meter Work?

STEM Activity

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Have you ever wondered how wind is made? Wind is caused by a difference in air pressure. Air travels from areas of higher pressure to places where there is less pressure. And just as air flows out of the high-pressure inside an inflated balloon if the opening is not tied, air in the atmosphere will move to a lower pressure area, creating wind. The speed of that wind can be measured using a tool called an anemometer. An anemometer looks like a weather vane, but instead of measuring which… Read more

How Far Can Your Sneeze Go?

STEM Activity

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Do you cover your coughs and sneezes? How far do you think the droplets can travel if you do not cover them? Why is this important to help prevent the spread of diseases like COVID-19? Try this activity to find out! Read more

How Much Sugar Is Really in That Soda?

Science Fair Project Idea

Scientific Method

You know there is sugar in non-diet soda, but just how much sugar? Sure, you can look on the ingredients label, but how do food scientists actually measure the amount of sugar in a solution? They use a simple scientific device called a hydrometer. The hydrometer floats in the solution that is being tested, and the higher it floats, the more sugar there is! In this science fair project, you will use a precision hydrometer to measure the amount of sugar in soda. Read more

How Particle Size Determines Chemical Reaction Rate

STEM Activity

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Did you know that flour can explode? Luckily, this does not happen spontaneously on your kitchen counter, but only if the conditions are right. The trick is that you need a very fine powder of flour to make an explosion happen. In fact, any solid flammable material that is dispersed in the air as a dust cloud will explode once it is ignited. Why is that? It has to do with the particle size of the solid material, which determines how rapidly a chemical reaction takes place. In this activity, you… Read more

How Salty is the Sea?

Science Fair Project Idea

Scientific Method

Have you ever been swimming at the beach and gotten some water in your mouth by mistake? Then you know that the ocean is very salty. But what about other bodies of water? How much salt do they have compared to the ocean? Read more

How to Balance Anything

Science Fair Project Idea

Scientific Method

Ever wonder why it is harder to keep your balance with a heavy backpack on? Or why it is difficult to make a toddler's sippy cup tip over? Maybe you are the kind of person who wonders about circus balancing acts and would like to learn how to ride a bike on a rope. Or perhaps you want to know how to make your toy car less prone to toppling over when racing through a sharp curve. In this science project you can learn about balance using marshmallows, skewers, and toothpicks. Sticky, yummy… Read more

How to Harvest Water from Fog

STEM Activity

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How long do you think you could survive without drinking any water? Only three to four days! Your body needs water to function properly. We also rely on water for cooking, cleaning and many other activities. You might not think about getting enough water if you can get it easily by turning on your faucet. But what about areas that don't have a reliable water supply? In this activity you will learn about one creative way to collect water—from the air! Read more

How to Make a Dimmer Switch with a Pencil

Science Fair Project Idea

Scientific Method

Dimmer switches let us control the brightness of a light, anywhere from completely off to full brightness. This can be nice when you want to set the brightness "just right," as opposed to a regular light switch that only lets you turn a light on or off. It turns out that you can make a dimmer switch out of an everyday object—a pencil! Try this project to find out how a dimmer switch can control the brightness of a light. Read more

Improving Focus for People with Neurodevelopmental Disorders

Science Fair Project Idea

Scientific Method

Have you ever wondered how you could help yourself or your classmates focus or perform better in class? Many students do! Some kids diagnosed with a neurodevelopmental disorder learn better in different ways, and easy changes while performing a task can make a huge difference to them. In this science project, you'll test if standing can significantly improve your performance and if this further improves performance for those who have neurodevelopmental disorders. Read more

Ion Thruster: Build an Ion Wind Rotor

Science Fair Project Idea

Scientific Method

Ion thrusters, also called ion engines (Figure 1), are a type of electrically-powered spacecraft propulsion. While they provide very low thrusts (and thus low accelerations), they can do so for very long periods of time using a very small amount of fuel. So, while not appropriate for escaping Earth's gravity like chemical rockets which are less efficient but generate higher thrusts, they are useful for deep-space probes or making small adjustments to satellite orbits. You can read more about… Read more

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