Twelfth Grade Science Experiments (Page 42)

How Many Colors in a Rainbow?

STEM Activity

1

2

3

4

5

48 reviews

Have you seen a rainbow in the sky after a rain shower? How many colors were there? A rainbow is often described as having seven colors: red, orange, yellow, green, blue, indigo and violet, but you might spot a rainbow and see fewer colors. Or you might see more than seven! It can be tricky to count the colors in a rainbow, because they all blend together so seamlessly. Want to see for yourself? In this activity you will explore the physics of light and create your own mini-rainbows. How many… Read more

How Much Fat is in Your Food?

Science Fair Project Idea

Scientific Method

Have you ever been told to avoid certain foods because they contain too much fat? Almost every food we eat has some amount of fat in it; often in an invisible form so we do not even notice. However, eating healthy does not mean getting rid of all fat in your diet. On the contrary, fat is an essential nutrient for your body! Only consuming too much of certain fat types creates problems. Are you curious about how to determine the fat content of different foods? Gather some chips, chocolate, and… Read more

How Sugar Content Changes in Ripening Fruit

Science Fair Project Idea

Scientific Method

You have most likely witnessed the change that occurs as a banana ripens It changes from green and relatively hard to yellow and soft. The flavor also changes, from bitter to sweet. What happens during ripening? One big change is the increase in sugar content. In this food science fair project, you will measure how the sugar content of a banana changes as it ripens. Read more

How the Strength of a Magnet Varies with Temperature

Science Fair Project Idea

Scientific Method

Physicists sometimes study matter under extreme conditions. For example, think of the emptiness of interstellar space vs. the unimaginable crush of pressure at the center of a neutron star, or an object dipped in liquid nitrogen vs. the tiles on the space shuttle during re-entry. Here's an experiment on permanent magnets in "extreme kitchen" conditions that you can try at home. Read more

How to Control a DIY Mini Drone with an Arduino™

Science Fair Project Idea

Engineering Design Process

Most drones fly with a mix of human input and autonomous control based on feedback from electronic sensors. This allows the drone to fly up and down when the human operator presses a joystick on a controller, but automatically hover at a fixed distance above the ground when the operator lets go of the joystick. In this project, you will explore drone programming with an Arduino. What types of inputs and sensors can you make your drone respond to? What behaviors and responses can you program… Read more

How Well Do You Wash Your Hands?

STEM Activity

1

2

3

4

5

43 reviews

How well do you wash your hands? Do you just give them a quick rinse with water, or do you use soap? Do you wash the backs of your hands and in between your fingers? Good hand washing is one of the best ways to prevent the spread of germs and diseases like the flu and common cold. Try this activity to find out if there are hard-to-wash parts of your hands where germs might be hiding! Read more

Kimchi Chemistry

Science Fair Project Idea

Scientific Method

You're probably familiar with sauerkraut, a German dish of cabbage that is fermented in a brine made of its own juice and salt. Have you heard of another cabbage dish, called kimchi? Kimchi is a traditional fermented cabbage dish from Korea. Koreans eat kimchi year round, enjoying its spicy taste and the fact that it contains loads of vitamins B and C. In this cooking and food science fair project, you will make kimchi from scratch and investigate changes in pH and glucose as the kimchi… Read more

LED Stickies

STEM Activity

1

2

3

4

5

25 reviews

Add some light to your refrigerator magnets and learn about circuits in this fun craft project! Read more

Let's Go Fly a Kite!

Science Fair Project Idea

Scientific Method

Kites have been a source of entertainment for centuries for kids from cultures around the world. In this science project you will have a chance to build your very own kite, a simple sled kite. Then you will use it to investigate how kites fly. Will you find out the best way to fly your kite? Read more

Lighten the Load with a Pulley

STEM Activity

1

2

3

4

5

56 reviews

Before the Industrial Age, people had to rely on muscle power to move and lift heavy objects. Simple machines like pulleys, levers, and ramps made it easier for humans to lift heavy objects like rocks and logs. In this project you will use simple household materials to explore one of these classic machines – the pulley. Read more

Twelfth Grade Science Experiments (top 2,000 results)

Explore Our Science Videos