Twelfth Grade Science Experiments (Page 126)

Encryption

Science Fair Project Idea

Scientific Method

Want to send coded messages to your friends? Can you write a simple letter-substitution encryption program in Python or JavaScript? How easy is it to break the simple code? Can you write a second program that "cracks" the letter-substitution code? Investigate other encryption schemes. What types of encryption are least vulnerable to attack? Read more

Energetic Two-Ball Bounces

STEM Activity

1

2

3

4

5

7 reviews

How many ball sports can you name? How many of those have several balls at once in the game? Almost none, right? Games that do use several balls at a time most likely use balls of the same mass, volume, and material. Would having two balls of a different mass make a game very difficult? In this activity, you will explore what might happen if you were to add a tennis ball to a basketball game, or a tiny ping pong ball to a tennis game, or any other combination. Ready to be surprised? Try it out! Read more

Energy Savings with LED Lighting

Science Fair Project Idea

Scientific Method

Global warming, climate change, melting ice caps—these are all big events that have an impact our environment. What can we do to help reduce the impact? We can reduce, reuse, and recycle. What can cities do to help? Cities can eliminate waste by saving energy. Cities around the world are switching from incandescent traffic signals to LED traffic signals to save energy and money. That's because LEDs are more efficient than incandescent lamps, which means that LEDs produce more light… Read more

Engineer a Cell Phone Stand

Science Fair Project Idea

Engineering Design Process

Look around you. What types of objects do you see in the room? Furniture, lights, a computer, a fan, pencils, books, etc.? Where did they come from? Odds are you did not build them yourself. You or your parents probably bought them at a store. Before that, they were built in a factory somewhere. And even before that, they were probably designed by engineers. You might think of engineers when you think of complex machines like rockets or huge structures like bridges, but engineers also design… Read more

Environmental Education STEM Project Roundup!

Blog Post

Science Buddies has great ideas for hands-on science projects and activities students can do to learn more about environmental science and sustainability. There are many projects at Science Buddies that help guide students in independent exploration of environmental science topics and issues. The list below highlights 22 projects related to recycling, stewardship, conservation, sustainability, and environmental awareness from our library of more than 1,100 science projects for K-12 students.… Read more

Evaporative Cooling with Liquids

STEM Activity

1

2

3

4

5

1 review

Have you ever wondered why we sweat when our environment is getting hot or when we exercise? Sweating is a life-saving strategy that cools our body down and maintains our body temperature. Without sweating, our body cannot regulate our temperature, which can lead to overheating or even heatstroke. But why does sweating have a cooling effect? The answer is evaporative cooling. Turning a liquid such as sweat from its liquid state into a gas requires energy. This energy is taken from our body, or… Read more

Evolution of Friendship Groups Over Time

Science Fair Project Idea

Scientific Method

This project asks the question "How do friendship groups change over time?" The results may support inferences about how "people skills" develop. What types of changes would you expect to see? Do you expect friendship groups to grow larger over time? Do you expect that individuals will belong to more, less or about the same number of friendship groups as they get older? Do you think there will be more or less exclusivity among groups (and how would you measure such a concept)? Do you… Read more

Experiment with Making Gels

Science Fair Project Idea

Scientific Method

Chances are, you have several materials around your house made of gelatinized materials. Gels are used in all kinds of products and materials: pudding, diapers, insoles, packaging, ice cream, toothpaste, and many more. In this project, find out how gels are made and how they can be adjusted from firm to soft by changing the ingredients. Read more

Explore Biodiversity Using a Homemade Bug Vacuum!

STEM Activity

1

2

3

4

5

5 reviews

It might seem impossible to estimate how many different bugs live in a nearby field, or how many types of birds live in a forest, but wildlife biologists often have to try to determine the number of different species in a given habitat. This plays an important role in helping us understand how healthy the environment is. In this activity, you will get to take on the role of a wildlife biologist by examining the biodiversity of bugs and other small invertebrates (such as spiders, centipedes,… Read more

Explore Interplanetary Spacecraft Maneuvers with FreeFlyer®

Science Fair Project Idea

Scientific Method

If you are interested in space travel and willing to do some coding, this project is for you! It uses FreeFlyer®—powerful software that allows you to simulate space travel—to explore essential mission questions. Space travel is complex. Many factors influence the trajectory of a spacecraft. Simulations like the ones generated by FreeFlyer are powerful, as they allow you to analyze each factor in isolation, and then visualize the effects in various ways. Once you familiarize… Read more

Twelfth Grade Science Experiments (top 2,000 results)

Explore Our Science Videos