Twelfth Grade Science Experiments (Page 154)

Stop Slumping: What Makes Foams Stand Up Straight

Science Fair Project Idea

Scientific Method

Here's a riddle for you: What would a latté be without a froth of bubbly milk on top? Answer: Black coffee! And how about a pumpkin pie without the whipped cream? Answer: Sad. Delicious, edible foams are everywhere, from sodas, meringues, and soufflés to mousses and whipped creams. They provide a delicious, spongy contrast to the foods they accompany, and their airiness releases aromas that enhance the eating experience. So, what makes a good foam? One with high volume and lots of… Read more

Storytelling Alice: Once Upon a Time in a Computer-generated Land...

Science Fair Project Idea

Scientific Method

The Incredibles, Ratatouille, Up. What do these Pixar films have in common? They are all computer-animated films. While the writers and directors came up with the compelling stories and the kinds of scenes that would best tell the stories, the computer animation experts brought the films to life. In this computer science project, you will easily be able to create your own animated story using a simple computer programming environment called Storytelling Alice. To create your animation, you will… Read more

Strange but True: Summer of STEM (Week 8)

Blog Post

Join Science Buddies this summer for virtual summer camp! Each week, we'll have a fun STEM theme for kids of all ages, suggestions for simple hands-on activities, book picks, and more. With our Summer of STEM, we'll keep you and your kids inspired all summer with creative and innovative science and engineering activities — for free. This week: 15 interesting and exciting explorations in the category of "strange but true" science. Strange but True… Read more

Strength in Numbers?

Science Fair Project Idea

Scientific Method

Ever try to tear a telephone book in half? Even though you can easily rip one or a few pages to shreds, the entire phone book has strength in numbers and holds together. This project is an introduction to measuring and comparing the strength of materials. Does spaghetti get extra strength if you bundle it together, or does strength simply increase proportionally with the number of strands? If you are interested in materials testing, get cracking! Read more

Strength of Glues

Science Fair Project Idea

Scientific Method

Try gluing wood together with different types of glue, e.g.: regular white glue, yellow wood glue, cyanoacrylate (super glue), and Liquid Nails. Glue a short piece (5-8 cm) to the center of a longer piece (15-30 cm). After the glue has dried for the recommended time, drill a small hole through the center of the joint, big enough to pass through a piece of coat-hanger wire. Cut a length of coat hanger wire, pass it through the hole, and twist the ends together to form a loop. Place the ends… Read more

Stretch It! How does temperature affect a rubber band?

STEM Activity

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Have you ever noticed that some objects tend to expand when they get hot, and contract when they cool down? For example, you might run hot water over the lid of a jar that's stuck - this causes the lid to expand, making it easier to twist off. Does this effect work the same way for all materials? Try this fun activity to find out! Read more

Strong Wind Science: The Power of a Pinwheel

STEM Activity

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Have you ever ridden your bike into a strong wind? If so, did your legs feel like lead? How does this compare to how you feel when the wind is pushing against your back – does that make you feel ready for the Tour de France? In this science activity, you will explore how wind-powered devices, like wind turbines and pinwheels, also react in different ways to the direction of the wind. Read more

Study Chirality with a Homemade Polarimeter

Science Fair Project Idea

Scientific Method

Some molecules can be either left- or right-"handed." The left- and right-handed molecules have the same number and type of atoms, and their chemical structures look identical, but they are actually mirror images of each other. Many naturally occurring molecules have this property, called chirality. Chiral molecules can interact with polarized light in an interesting way—they rotate the plane of polarization. This chemistry science fair project describes how to make a homemade polarimeter… Read more

Succession Science: Are Fingerprint Patterns Inherited?

STEM Activity

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Have you ever seen a boy who looked just like his father when he was younger? We can often tell that two people are related because they have several similar physical traits. This is because children receive half of their DNA (i.e., their genetic blueprints) from each parent. What about fingerprints – are they an inherited trait? Fingerprints are used to identify people because each person’s fingerprints are unique, but people can have similar fingerprint patterns. This… Read more

Sustainable Construction: Building with Mushroom Roots

Science Fair Project Idea

Scientific Method

Does growing your own house sound futuristic? If so, this project might surprise you! An overlap of biology, material science, and environmental science has resulted in some intriguing self-assembling materials. In this project, you will grow one of these materials: mycelium composite. It is made of agricultural waste and mushroom roots. You will explore two ways to grow your own construction material. Try it out and see which method proves to be the strongest! Read more

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