12th Grade Science Projects

What is Respiration in Plants All living things use a process called respiration to get energy to stay alive. Cellular respiration in plants is the process used by plants to convert the glucose made during photosynthesis into energy which fuels the plants’ cellular activities. On the other hand, photosynthesis is the process where light energy…

One of the most salient properties of water is its ability to dissolve other materials. In this experiment, you will dissolve Borax powder into the water to create a saturated solution. A solution is saturated when no more powder can be absorbed. Water can dissolve more powder when it is hot. In this experiment, you…

The Blue Sky On a clear day, the sky is nothing more than the air in the atmosphere. The air itself or the sunlight doesn’t seem to contain any color. So why is the sky blue if sunlight is colorless? The sky is blue due to the scattering of light by tiny particles in the…

Gravity is a force that sucks everything to the ground and keeps our feet firmly planted on the floor. What about center of gravity? Have you ever heard of it? The center of gravity of an object is the point around which all weight is balanced. In humans, it is often referred to as the…

Is it Christmas time already? Let’s create some homemade crystal ornaments with the kids. Kids will learn some science while decorating the Christmas tree with ornaments they create. In this experiment, we will use a saturated solution made out of Borax powder. This is a perfectly safe experiment for kids under adult supervision. You can…

We normally don’t play with fire (for obvious reasons). But here is a experiment I didn’t expect to be so easy and so much fun to do. At the same time, the results are so hard to understand, with, sadly, much misleading information on the internet. As always, adult supervision is required! THERE IS FIRE INVOLVED Why The…

Did you know that you could easily make a battery at home? You can do that by using lemons. Yes, lemons! Lemons are sour and carry a lot of citric acid. Of course, they cannot power your refrigerator or a toy car. But they contain enough energy to power a small LED light and make…

Is black really black? What happens when all the rainbow colors blend together? We will be able to answer these questions after doing some science investigation. In this experiment, we will use coffee filter to investigate color properties. We will make a beautiful bouquet of flowers along the way, too! It’s a combination of a coffee…

“Don’t touch a switch with wet hands!” We were all taught that since we were little kids. It does seem like water can conduct electricity and that is why we shouldn’t touch any electrical outlet or switches if our hands are not dry. Does water really conduct electricity? Let’s find out by doing a simple controlled…

Density is the amount of substance (mass) within the volume occupied by the object. If two cups have the same amount of water (i.e. same volume), the one with more sugar is denser than the one with less sugar. Buoyancy is determined by relative density. The solution with less density floats above the solution with…

The idea of creating something beautiful and unique out of ordinary materials is a lot like magic. One great example of this is growing your own crystals. And you can grow them into a rainbow. All you need to do it is a little bit of time, patience, and a few basic supplies. This crystal…

Electricity is all around us. We use electricity everywhere in our daily lives. We use it to light our rooms, run our TVs, power our phones, and charge our laptops. Do you know how electricity is brought to our homes? And do you know why flipping a switch can turn on or off the light?…

Electrical devices such as refrigerator, television and vacuum cleaners require electricity to operate. Do you know how electricity is created? And how do batteries operate a motor? Electricity is created using magnetic field. If you have a strong magnet and a battery, you can make a simple homemade motor. Try this very cool experiment. And…

In this experiment, we first see an acid-base reaction. Eggshells contain calcium carbonate which is a base while vinegar contains acetic acid. When you submerge an egg in vinegar, an acid-base reaction causes the calcium carbonate to break down into their calcium and carbonate parts. The calcium ions (as in calcium acetate) stay dissolved in…

Playing with an air canon is always fun. You can use it to propel little tissue balls with it You can also have a race to see who can make the balls fly the farthest. You can also make a smoke ring with it. Air canon moves the air. It’s normally hard to see how…

Have you ever wondered why the string of roller coaster cars is pulled up to the crest of the tallest point on the roller coaster before rolling downhill to the loop? Why do the cars not fall off even when they are upside down inside the loop? The roller coaster is a great demonstration of the law…