3 Fun Science Projects for Every Age - Delphi Boston Delphi Boston

3 Fun Science Projects for Every Age

Science is all around us. It’s in the food we eat, the scenery on our morning drive to work, and the soap we use to wash our hands. Let’s face it, science is fascinating and lends itself to children’s natural curiosity. A year ago, NPR found students are more excited about science, and learning, when it’s made real to them. With a hands-on-approach during experiments, it becomes exciting and tangible. In that spirit, we found three fun food-based science projects to help your burgeoning scientist discover his or her passion!


Homemade Sandwich Baggie Lemonade– Not only is this experiment delicious, it also serves as an introduction to the scientific method for Lower School students. Keep in mind parental supervision is needed!


Here’s what you need:


  • Plastic sandwich baggies
  • Lemons
  • Water
  • Sugar
  • Straws
  • Ice (optional)

Here’s what you do:

  1. Cut a lemon into quarters and remove any seeds.

  2. Place one quarter into a plastic sandwich baggie.

  3. Add ½ cup of water.

  4. Add approximately 1 teaspoon of sugar.

  5. Zip the bag securely.

  6. Gently mix the contents of the bag for about 30 seconds, making sure to squeeze the pulp of the lemon.

  7. Open a small section of the top of the bag and insert a straw. If desired, add a couple of ice cubes.

  8. Enjoy!

The Incredibly See-Through Egg- This one can get a little smelly but is an opportunity to see what goes on beneath the ordinary surface. It’s perfectly geared towards Elementary School students.

Here’s what you need:

  • A raw chicken egg in its shell (one from your ordinary grocery store dozen is fine)
  • White vinegar
  • A clear glass jar with a lid
  • Turkey baster

Here’s what you do:

  1. Carefully place the whole, uncooked egg in the glass jar. Use a big spoon if necessary.

  2. Pour vinegar over the egg so that it is completely submersed in the vinegar.

  3. Cover the jar and observe. Discuss with your child: what is happening inside the jar? What can she see? (She should see bubbles forming.) What does she think might be happening?

  4. Explain to your child that the bubbles she sees in the jar tell you that the vinegar is dissolving the eggshell. It’s eating away at the “stuff” (calcium, mostly) that makes egg shells hard. Ask her what she thinks might happen if you let the vinegar keep eating away at the eggshell.

  5. Place the jar inside the refrigerator for about 24 hours. Take it out of the fridge, and use a baster to remove most of the vinegar. (Be careful not to poke or bump the egg! Remember, its shell has been dissolving.) Then pour fresh vinegar over the egg, and return to the refrigerator for another 24 hours.

  6. Continue in this manner until the eggshell becomes see-through. (The amount of time needed to achieve this varies with the size, variety, and thickness of the eggshell.)

  7. Gently use a large spoon to scoop out the egg. Now you have an egg without a shell! You can see the insides of the egg, which are being held inside by a membrane. Explain that the membrane is like a skin around the egg.  Ask your child to consider why this membrane might be helpful to a growing chick inside its egg. (It keeps out dirt and germs and other harmful substances. It also lets air get in.

  8. Encourage your child to observe the shell-less egg and describe what she sees. Can she name any other parts of the egg? (Yolk, egg white or albumen, etc.)

  9. Finally, let your child hold the egg in her hand over a sink and give a very gentle squeeze. (Watch out!  If you squeeze too hard, the egg will explode!) What does it feel like? (It feels like a squishy pillow.) Discuss why the insides of the egg would be a perfect place for a baby chick to grow before it hatches. (It’s squishy, so it’s like a cushion for the growing chick, and the membrane and shell keep it safe.)

The Bread Mold Experiment- Mold is seemingly everywhere, but what’s the best environment for its growth? Does your Middle School student know? He or she might be the next Alexander Fleming!

Here’s what you need:

  • 3 pieces of bread
  • 3 resealable plastic bags
  • Permanent marker
  • Water

Here’s what you do:

  1. Put bread in all three bags.

  2. Take one bag and put it in a dark place. Place the next bag in the refrigerator. Place the last bag in a sunny area. Make sure each bag is sealed tightly. Label them with a marker.

  3. While you wait for the results, work with your child to develop a hypothesis as to what will happen to each bag of bread. Think about where mold grows naturally. What conditions does your child think are conducive to mold growth in nature?

  4. Check each bag daily to record any changes you see, and compare the results with your child’s.

Here at Delphi Boston, we take an integrated approach to science, emphasizing practical application. Easy and fun science projects, like these, help fuel that natural curiosity.

For more on how we incorporate hands-on-learning, RSVP for the next Open House on November 16th!

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