Twelfth Grade Science Experiments (Page 144)

Cucumber Chemistry: The Drying Power of Dessicants

Blog Post

Substances that can absorb water from the environment can help keep products dry—or help dry out something that has gotten wet, like an electronic device. The small silica gel packets that you often find when you open a new product are used to help keep the product dry. The properties that make a silica gel packet work are properties you can find in other substances as well. There are even ordinary kitchen ingredients that can be used to absorb moisture and help to dry something… Read more

Dance Mania: Build Your Own Dance Pad!

Science Fair Project Idea

Scientific Method

It's fun to host and attend parties. You can meet your friends, watch movies, and eat party food. Another thing that people like to do at parties is dance to music. Dancing is great exercise and just makes people happy. What if at the next party you attend, you could do your science fair project? Doesn't sound like a good idea? Well, in this electricity and electronics science fair project, you will make a dance pad that flashes lights when you step on it. Have your friends test it out for you.… Read more

Dancing Candy Hearts

STEM Activity

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Have you ever opened a fresh bottle of carbonated water or soda, poured a glass of it, and just watched as the bubbles fizzed upward in the glass? Have you ever wondered what those bubbles are? They're made of carbon dioxide gas, which was packed tight in the soda before you opened the bottle. Not only can that carbon dioxide gas give you a fizzy drink to enjoy, but it can also give you a show. How? By making candy conversation hearts "dance!" Along the way you will discover some of the fun… Read more

Dancing Candy Hearts: Weekly Science Activity

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Hands-on candy science activity for Valentine's Day. What happens when you drop candy hearts in a glass of soda or seltzer water? In this week's spotlight: a fun chemistry activity for Valentine's Day. If you have conversation hearts candies on hand this Valentine's Day, put a few aside for a fun family science experiment. What happens when you drop one of the candies into a glass of soda? Why? This hands-on science activity makes a great science… Read more

Deep Knee Bends: Measuring Knee Stress with a Mechanical Model

Science Fair Project Idea

Scientific Method

Are you interested in things like prosthetic limbs and artificial joints that can help people with disease or injury to lead a normal life? Or maybe you're interested in sports medicine or physical therapy? Either way, this project could be a good match for you. Find out how the tension on the knee joint changes as a function of angle by building a simple mechanical model. Read more

Design a Back Scratcher

STEM Activity

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Don't you hate it when you have an itch you can't reach right in the middle of your back? Engineer a solution to the problem and build your own back scratcher in this fun activity! Read more

Design and 3D Print Your Own Fabric

STEM Activity

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When you think of 3D printing, you probably think of solid objects. But did you know that you can use a 3D printer to make a flexible fabric? This activity will show you how to design and 3D print your own fabric. Read more

Designing a Speaker for Bass or Treble

Science Fair Project Idea

Scientific Method

Whether you have already tried the Science Buddies Build a Paper Speaker activity or the Measure the Frequency Response of a Paper Speaker project, or you just like music and are interested in exploring more about the science of sound, then this project is for you. You probably know that sound waves can have different frequencies. If not, you can read more about that in the background section of the Measure the Frequency Response of a Paper Speaker project. The range of human hearing is… Read more

Detective Science: Weekly Science Activity

Blog Post

In this week's spotlight: a physics-focused science activity that helps families learn more about how forensic science can provide clues to solve crimes! Blood stains and spots at the scene of a crime can help detectives piece together what happened. In this activity, students use fake blood and investigate how blood stains change depending on the height from which the blood was dropped. It may sound gory, but there is interesting physics to explore! You and your family can explore the… Read more

Diaper Duty Science

Blog Post

In this family STEM activity, students take an inside look at the polymer in diapers that makes them absorbent. Just Add Water What do astronauts and babies have in common? They both rely, at times, on diaper-like solutions to keep them dry. When it comes to how a diaper absorbs liquid and keeps moisture away from the body, there is serious science at work. With a family-friendly science activity, kids can take a closer look at what happens inside a diaper when the diaper gets… Read more

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