Second Grade Science Experiments (Page 103)

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Put physics in motion! Experiment with the science of launching and catapulting with fun hands-on science and engineering projects. How can science explain trajectory, flight path, and aim? Launch and Catapult Science. Hands-on STEM with Science Buddies. www.sciencebuddies.org K-12 Science Projects and Activities The following Science Buddies projects explore the science of launching and catapulting with trebuchets, rockets, catapults, or similar… Read more

12+ Engineering Projects to Celebrate Girl Day

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Take time this Engineers Week to encourage a girl to try an engineering project or activity! Our list of 12+ ideas will help get you started! Today is Girl Day, an exciting part of Engineers Week! Girl Day is a wonderful reminder to educators and parents around the world that talking with girls about engineering careers, introducing them to engineering role models, and engaging them with creative and hands-on engineering activities can help them see… Read more

12 STEM Activities for Lunar New Year

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Celebrate Lunar New Year and the Year of the Horse with these free science and engineering activities for enriching hands-on STEM. What is Lunar New Year? Lunar New Year (also known as Chinese New Year) begins February 17, 2026. Lunar New Year starts with the new moon that happens in late January or February. Celebrations continue for 15 days and culminate with a Lantern Festival. In Chinese culture, 2026 will mark the Year of the Horse. There are… Read more

14 Balloon Science Activities

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Engaging student science doesn't always require specialty materials. These hands-on STEM projects all use balloons! Hands-on Science with Ballons. Hands-on STEM with Science Buddies. www.sciencebuddies.org K-12 Science Projects and Activities Balloons can be used in a wide range of student hands-on science projects. From powering a car or propelling a hovercraft to enabling exploration of rocket science, kids can experiment with physics, aerodynamics,… Read more

15 Science Activities for Preschool Fun

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These free hands-on STEM activities are a great way for even the youngest of students to begin exploring science and engineering. Free Science Activities for Preschool The following science activities from Science Buddies' library of STEM Activities for Kids are perfect for letting preschool kids get hands-on with science: Make a Lemon Volcano: combine baking soda with lemon (citric acid) to create a bubbling volcano. Elephant Toothpaste: mix… Read more

24 Halloween Science Experiments!

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From icky slime to candy coatings, fake blood, wearable LEDs, a fire snake, and things that foam, light up, or glow in the dark, we have STEM suggestions for spooky, Halloween-themed science and engineering to explore with students! Halloween Science and Engineering Projects! Trick or treat! It's Halloween season! With its emphasis on the ghostly, the ghoulish, the gruesome, the spooky, the icky, and, of course, the sweet (to eat), Halloween brings an assortment of exciting themes to… Read more

A Bright Idea for Saving Energy

Science Fair Project Idea

Scientific Method

In the United States, lighting for homes accounts for about 14% of all residential electricity usage (EIA, 2014). That's billions of dollars worth of electricity per year. The U.S. has passed legislation to phase out older, more inefficient incandescent light bulbs, and they are being replaced with newer, more-efficient bulb types like compact fluorescent lights (CFLs) or light-emitting diodes (LEDs). How much energy (measured in kilowatt-hours [kWh]) and how much money could be saved by… Read more

A Candle Seesaw Balancing Act

STEM Activity

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Do you love playing on a seesaw? Why is it that depending on where you sit on the beam, and the weight of the person on the other side, you either fly up into the air or fall down to the ground? And why is it so difficult to perfectly balance the seesaw? It can all be explained with physics! In this activity, you will investigate the balancing forces of a seesaw—with a seesaw made of candles! Read more

A Cure for Hooks and Slices? Asymmetric Dimple Patterns and Golf Ball Flight

Science Fair Project Idea

Scientific Method

Have you ever wondered why golf balls have a pattern of dimples on their surface? The dimples are important for determining how air flows around the ball when it is in flight. The dimple pattern, combined with the spin imparted to the ball when hit by the club, greatly influence the ball's flight path. For example, backspin generates lift, prolonging flight. When the ball is not hit squarely with the club, varying degrees of sidespin are imparted to the ball. A clockwise sidespin (viewed from… Read more

A Magnetic Primer Designer

Science Fair Project Idea

Scientific Method

How do scientists "copy" DNA? They use a process called the Polymerase Chain Reaction, or PCR. The key to making this process work is having a short piece of DNA, called a primer, that will stick to the larger piece of DNA you want to copy, called a template. In this science project, you will test how the number of matches and mismatches in a primer will affect its ability to stick, or anneal, to the DNA template during PCR. Read more

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