10 Science Fair Project Ideas

I’ve shared before about our love of display boards for learning. Today I offer an overview plus links to 10 of our science fair projects. I hope you will notice that these are all an extension of what we were already studying…
It was afternoon quiet time on a Tuesday. My daughter pulled… them… all… out. She set them up for display. All of them. The room full of projects started to draw a crowd. The science fair projects and history display boards from the last several years. “Wow,” we all said. The enormity made quite a picture. I was impressed by the learning.

Each of my older three children particularly love making display boards. Plus, our homeschool group hosts an annual Homeschool Expo, so we get to share our work. Children may display their science and/or history projects. Plus families each fill a table full of learning from the year. This past year we had an official science fair, complete with judging and ribbons.

10 Science fair topics we’ve covered as a family or individually:

Question: How are Sharks and Humans Alike? Different? Since Kindergartener LOVES sharks, especially hammerhead sharks, she wanted to learn more about them. She remembered that in our science studies were are learning about the human body. So she came up with the question above. Well, over the summer Nana had seen on the Pink and Green Mama blog a life-sized diagram of the human body. This diagram was made by tracing the child’s body first. Then using household materials to make the bones, organs and more. This part of the science project took the most time but was also the most fun!

What is a Sea Turtle’s Life Cycle? I wanted to learn more about sea turtles ever since we went to the beach. There was a sea turtle nest right in front of where we were staying. We thought it might even hatch while we were there but it didn’t. For my science project, I watched all kinds of awesome YouTube videos – like this one of a baby sea turtle hatching. I decided to share about a sea turtle’s life on land and life in the ocean.

How to Make an iPad App – Lately, I’ve spent time with my Dad learning how to use software to make iPad and iPhone apps. I’m learning a lot. So, when it was time to decide a science fair topic, why not do this?

How are the Human Eye and a Camera Lens Different? For my board I compared the camera to the human eye. I chose that topic because the eye was something I was already studying in anatomy and I love photography.

Which Makes the Biggest Bubbles? Third grader‘s Bubble Science. Question: Which makes bigger bubbles? Oh boy did she find out that day. This project was a result of a spontaneous morning of playing in homemade bubble juice.

How is Weather Measured? Sixth grader asked the question, “How is weather measured?”(this photo taken before the conclusion was posted on his board). Following assignments in our Answers in Genesis Weather and Water science text, he made a rain gauge, wind sock and a tornado tube.

Which Egg Substitute Works Best as a Binder? Perfect in our allergy-friendly household! Seventh grader set out to find out which egg substitute works best as a binder. Which results in the best taste? She picked double chocolate cookies as her test recipe. We got to enjoy the results!

She says, “Cookies are my joy in life.”

The following three projects contained in this science fair project weekly wrap post:

Which Food Attracts a Variety of Birds? Eldest boy offered up the backyard birds different feeders and muffin trays full of food, suet, etc. He kept a journal and shared his results.

Great Backyard Redo – Eldest Girl planned our summer garden, flowers, veggies, sketched a before and after.

Do Jonquil or Crocus Bulbs Bloom First in Our Yard? – Middle Girl was curious which of these flowers would bloom first. She also included a short study of the difference between annuals and perennials. The bulbs for the project came from Mama Ann’s yard (great-grandmother pictured with Middle Girl, above).
Plus a bonus Hodgepodge family science project! Last year the science fair included a family category. So we couldn’t pass that up. Especially since we all enjoyed our unit of study with Answers in Genesis’ Our Universe. We’ve learned about the sun, the moon and its phases, asteroids, meteors, the space program, astronauts and more. We’ve stood outside in the driveway and watched the International Space Station fly over. This project included a display board (made with chalkboard paint and stars drawn on with chalk), a model of the solar system…

and, of course, Oreo phases of the moon.

Another memorable project we did as a family asked the question, Why Are My Eyes Blue? (you can see the board pictured in this photo above). This was such fun as we contacted grandparents and great-grandparents asking about eye color. All five of our children beat the genetic odds and have blue eyes.

How about you? Does your family use display boards for learning? Participate in a science fair?

Top Ten Tuesday at Many Little Blessings


  1. 1

    Rebecca says

    Tricia, I love these ideas…now that the children are older and I’m feeling more comfortable with homeschooling, I”m feeling courageous enough to venture into science fairs

    • 2


      Thank you Rebecca – the beauty of these projects is that they were mostly an extension of what we were already studying in science (so we were already learning about the topic and a child doing additional research was easy. We already had the resources at home). Or, a chance to say yes to running off and learning more about a subject that interested a child. The Great Backyard Redo we had talked about doing as a family one spring. Eldest Girl thought it out for us, coming up with separate projects or ‘areas’ of the backyard for each family member. It was fun!

  2. 3


    These are awesome! My son just turned 4, but I am going to share these with my sister-in-law who will surely love them! I am enjoying browsing your blog. You are very creative so thanks for sharing all your ideas. I look forward to reading more.

    • 5


      Deanna – thanks so much for stopping by, for your kind words and for sharing! Thanks, Angie – that statement is SO my daughter. Why not have a science project be an extension of a joy? :)

  3. 6


    I think I started reading your blog when Middle Girl did the “which blooms first” project. It seems like yesterday. We had a bunch of display boards stored from years past and just recently we decided we could take photos of them and then dispose of the projects. Sigh. There is only so much room for big projects to be kept from all the years with four children and a really small house.
    I really enjoyed seeing your family’s work. :)

    • 7


      Yes, Barb. I think that was just about the time we joined your wonderful Outdoor Hour Challenges. It sure does seem like yesterday! I hear you – there is only so much room. All of these are stacked on top of our bookcases in the living room turned school room. Sometimes we recycle a board but most are still there – including history/Tapestry boards. They may just take over before long… :)

  4. 8


    Thank you for the wonderful science project ideas! We have a science fair coming up and my youngest wanted to combine baking and science:) Yay for sharing your ideas and experience. We appreciate it.

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