High School Science Experiments (Page 22)

Measuring the Amount of Acid in Vinegar by Titration with an Indicator Solution

Science Fair Project Idea

Scientific Method

Have you ever wondered why some foods taste really sour? Vinegar is one example that you might know from salad dressings or pickles. They taste pretty sour, right? There are many different types of vinegar that you can buy to use around the kitchen for cooking and pickling. The chemical compound that gives vinegar its tart taste and pungent smell is acetic acid. Do you think all the different vinegars contain the same amount of acetic acid? Are there some that are more sour than others? How… Read more

Model Your Blood Flow

STEM Activity

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Why is it important to eat healthy and exercise? If you don't, you might end up with a cardiovascular disease. These diseases are conditions that affect your heart and blood vessels. The job of your cardiovascular system is to transport blood through your heart, veins, and arteries, to provide oxygen and nutrients to your body. If this blood flow doesn't work properly anymore, it can have serious consequences. In this activity, you will find out what happens to the blood flow of people that… Read more

Salty Science: Floating Eggs in Water

STEM Activity

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Have you ever wondered why some objects float on top of the ocean, and other objects sink to the bottom? It has to do with the density of the objects compared to the density of the salt water surrounding them in the ocean. If you add salt to plain water, it increases the density of the water. In fact, if you add enough salt, you can make the water so dense that an egg will actually float in it! Explore how this works in this science activity. Read more

Suck It Up! How Water Moves Through Plants

STEM Activity

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Have you ever heard someone say, "That plant is thirsty," or, "Give that plant a drink of water"? We know that all plants need water to survive, even bouquets of cut flowers and plants living in deserts. But have you ever thought about how the water moves within the plant? In this activity, you will put carnations in dyed water to figure out where the water goes. Where do you think the dyed water will travel, and what will this tell you about how the water moves in the cut flowers? Read more

Teach About Newton's Laws of Motion

Blog Post

Use these free STEM lessons and activities to teach about Newton's laws of motion. Newton's Laws of Motion in the K-12 Classroom Across all grade bands, students explore science related to forces, motion, and interactions between objects; concepts that use Newton's laws of motion as a fulcrum for understanding forces and motion; inertia and equilibrium; the relationship between mass and acceleration; the difference between acceleration and velocity;… Read more

The Dynamics of a Bouncing Ball

Science Fair Project Idea

Scientific Method

Many sports use a ball in some way or another. We throw them, dribble them, hit them, kick them, and they always bounce back! What makes a ball so bouncy? In this experiment you can investigate the effect of air pressure on ball bouncing. Read more

Tracking SARS-CoV-2 Spread from Wastewater

Science Fair Project Idea

Scientific Method

Have you ever wanted to know where hot spots of infection are or see how viruses spread? Are you interested in seeing how this changes over time? Check out our new science project that uses data visualization tools and tested wastewater data to track the virus that causes COVID-19 over time. Read more

16+ Engineering Challenges for Middle School

Blog Post

Inspire students to think like engineers with hands-on building and design challenges! Spark interest and build engineering design skills with one of these free engineering projects for middle school students. 16+ Engineering Design Projects to Inspire Middle School Students! Engineering design projects and challenges are a great way to ignite student interest in STEM. When students tackle an engineering design challenge, they are encouraged to… Read more

19 Fall Science Projects

Blog Post

Pair changing leaves and temperatures, apple season, pumpkins, Thanksgiving, and fall festivities with these free lessons and activities for enriching hands-on STEM. STEM Activities to Bring Autumn Themes to Science Class 1. Invisible Ink with Turmeric The same turmeric you might have out for Autumn cooking or as a seasoning at Thanksgiving, can be used as a revealing agent in the Secret Messages With Invisible Ink! chemistry activity. Write… Read more

7 Rainbow Experiments for Science Class

Blog Post

Making learning fun is sometimes half the battle! With the right activities, educators can ensure learning about science and engineering involves hands-on fun for students of all ages. Build in some colorful science exploration with STEM experiments on a rainbow theme! Rainbow STEM! The science of visible light and the physics involved in what we see as a rainbow can lead to exciting hands-on science investigations and experiments. The "cool factor" of… Read more

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