Sixth Grade Science Experiments (Page 86)

Making Milk Curdle with Pineapple Enzymes

Science Fair Project Idea

Scientific Method

Have you ever gone to pour yourself a cup of milk and all you get is milk clumps? What happened to the milk is called coagulation, which is the mechanism that occurs when proteins in the milk clump together. While you do not necessarily want this in your milk, without coagulation (or curdling), there would not be any cheese or yogurt, which is why it is a very important process in the food industry. But what makes milk curdle? In this science project you will use pineapple juice to curdle milk… Read more

Making Mixtures: How Do Colloids Size Up?

Science Fair Project Idea

Scientific Method

Have you ever wondered why some things disappear when they are put in water but other things do not? For example, you may have seen that salt disappears, or dissolves, when it is mixed in a glass of water. But when you throw a rock in a stream it will not usually dissolve, and instead it will just sink to the bottom. And then there are some things that do not act like the salt or the rock. These are called colloids. If you have made Oobleck out of cornstarch and water, then you have seen… Read more

Making Sound Waves

STEM Activity

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Have you ever heard of an “eardrum”? If the answer is yes, then you probably know that your eardrum is an essential part of your ear, allowing you to hear the world around you. But why do we call it a drum? It turns out that calling it a drum is a very accurate description of what your eardrum looks like, and what it does inside your ear. To understand how your eardrum works, imagine using a drumstick to bang on a real drum, and then touching the drum with your hand. When you do… Read more

March Madness Basketball Science Projects

Blog Post

As college basketball prepares for the March Madness spring championship, students can investigate basketball science and the math and physics behind hoops success. March Madness Sports Science Great hands-on sports science projects help students explore science, physics, and math principles at work in the sports they love to play and watch. When it comes to basketball and March Madness, students can bounce through physics experiments related to… Read more

Maze-solving by an Amoeboid Organism

Science Fair Project Idea

Scientific Method

Can a simple organism that lives off of dead trees and that grows as a mass of protoplasm actually have intelligence? The goal of this science fair project is to test the ability of the slime mold Physarum polycephalum to solve the problem of finding the shortest path through a maze. Read more

Memory Mnemonics

Science Fair Project Idea

Scientific Method

Have you ever had to remember a long list of planets or the state capitals? These kinds of lists are full of interesting facts, but they can be hard to remember, especially for tests. What could you do to remember the list better? In this human behavior science fair project, you will learn about a memory technique called mnemonics (pronounced nuh-MAH-nicks) and investigate whether using mnemonics can help you and your friends remember lists of words. Read more

Milk Curdling with Enzymes!

STEM Activity

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Have you ever gone to pour yourself a cup of milk, and all you get is clumps? What happened to the milk is called coagulation, which is the mechanism that occurs when proteins in the milk clump together. While you do not necessarily want this in your milk, without coagulation (or curdling), there would be no cheese or yogurt, which is why it is a very important process in the food industry. Wonder how you can make milk curdle? Do this activity to find out! Read more

Model How Herd Immunity Works

STEM Activity

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Have you ever wondered why you need to get a flu shot regularly? The vaccine protects you from getting sick with the flu, which is an infectious disease. Such diseases, like the flu or COVID-19, can easily spread through a population and cause a pandemic by making many people sick. Measures such as social distancing can reduce the risk of catching the disease, but real protection only comes from gaining immunity against the disease. This is the reason for vaccinations—to make someone… Read more

Modeling the Chances of Getting an Autoimmune Disease

Science Fair Project Idea

Scientific Method

Do you know someone who has an autoimmune disease? Autoimmune diseases are fairly common, affecting more than 23.5 million people in the United States, which is about 1 in 13 people! You may have heard of some of them, such as diabetes (type 1), rheumatoid arthritis, and celiac disease. Many autoimmune diseases are poorly understood, but they all have one thing in common: they happen because a person's immune system (which normally fights off germs to keep the person healthy) attacks the… Read more

Modifying a Car for Better Aerodynamics

Science Fair Project Idea

Scientific Method

Have you ever seen those cool wind tunnel pictures of cars with streams of smoke blowing over them? You do not need access to a wind tunnel to do a car aerodynamics science project! In this project you will use cheap, readily available materials—tape and yarn—to visualize airflow over a car. You will examine how you can affect the airflow over the car by making changes, like adding or removing accessories or making body modifications out of cardboard and duct tape. Maybe you can… Read more

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