Posts tagged STEM
Balloon Rockets
Watch how the force of air leaving a balloon can launch a rocket!

Watch how the force of air leaving a balloon can launch a rocket!

Balloons are always around our house, usually used for balloon volleyball, and today we're transforming them into rockets! Have you launched a balloon rocket before? It's a simple way to show cause and effect and a fun way to have races in the backyard (or in the living room on a rainy/snowy day).

Watch how the force of air leaving a balloon can launch a rocket!

Watch how the force of air leaving a balloon can launch a rocket!

To make your own you'll need, balloons, scissors, string, a straw, tape (we used packing tape to make sure our straw and balloon stayed together), and an image of rocket. We drew ours on some poster board. Any image you create or print will work just fine as long as it's not too heavy.

Select an elevated course to use: we decided to go from the post on our back deck which is three stairs off the ground down to the grass. If you're indoors, you can go from a cabinet handle or a railing to the floor. With the rope, I tied one end around a deck post. On the other end I threaded half of a straw through until it reached back up top to the post. That straw piece is your rocket launcher and keeps your balloon from swirling and twirling all over the place.

Grab a helper or secure the lower end of the rope. My son was all about assisting on this one! Next, blow up the balloon. Blow it all the way up and hold the end tight. Do not tie it off.

While keeping it securely closed with your hand, add the rocket to the top with tape. We rolled some tape on the back of the rocket beforehand so it was easy to do quickly. Put tape around the straw as well so that it attaches well to the balloon. We lost a few rockets when the balloons became detached from the straws.

The best part of this activity for me was seeing his excited face at the other end of the line! "Come on, Mom, another rocket!!"

Make a dramatic countdown - 10. 9. 8.... And all at once, release your grip on the end of the balloon and let your rocket shoot out! Make sure your string is tight, your straw is straight, and your balloon is really full of air to get the most our your rocket launch!

Enjoy, enjoy!

XOXO, MJ

P.S. We're forming constellations tomorrow with pins, string, and a corkboard!

2 Easy Exploding Experiments!
Make these two simple exploding experiments for some gooey, summer fun!

Make these two simple exploding experiments for some gooey, summer fun!

Summer is the right time to get kids' hands dirty and involved in learning! An open space that that can be get messy (or left dirty) can become the canvas for explosions and explorations. We decided to do some easy chemical reactions and see the results.

I have always wanted to try the erupting volcano experiment with my kids so we decided to gather the simple ingredients and head to the backyard.

If you want to try this, here's what you need:

  • A flat surface (we used a cookie pan covered in aluminum foil)
  • Tall jar or bottle
  • Baking soda (quarter cup)
  • Water (quarter cup)
  • White vinegar (quarter cup)
  • Red food coloring and dishsoap (not necessary, but way more fun)
  • Dirt, sand, or clay for volcano making
Make these two simple exploding experiments for some gooey, summer fun!

Make these two simple exploding experiments for some gooey, summer fun!

THE ERUPTING VOLCANO

In the bottle or jar, add 1/4 cups baking soda and water. Squirt in red food coloring and a strong squeeze of dishsoap. These will add foam and drama to your explosion. Put the lid back on the bottle or jar.

Using sand, dirt, or clay, mound up around the bottle. We used potting soil and water to build up the volcano sides. Once those are in place, take off the lid and pour in 1/4 cup of vinegar. The eruption is quick but not overwhelming. The kids wanted to touch the "hot lava" right away and were surprised that it smelled so good. :)

THE EXPLODING GEYSER

This next experiment we did right after the volcano because the kids wanted a bit more drama to the eruption. Have you done the Mentos candy in bottle of soda? Really, it's super fun and surprising to the unsuspecting.

To make the exploding geyser, you'll need:

  • One pack of mint Mentos
  • 2L bottle of soda (Diet Coke works the best)
  • A piece of paper and tape
  • A business card or strong piece of cardboard
Make these two simple exploding experiments for some gooey, summer fun!

Make these two simple exploding experiments for some gooey, summer fun!

Place the soda on a flat surface. Roll a piece of paper in to a tube to a size that fits the Mentos inside. You want to be able to drop all of the candies in at the same time for the most dramatic effect. Keep a card over the top of the soda until you're ready to let the Mentos drop in. Be ready to flee quickly once they drop in!

The explosion is no more than five seconds, but we've watched the replay over and over again!

These two simple and quick experiments delight on the cheap. Make them a part of your 18 Summers Challenge (even if you've already done them before!).

XOXO, MJ

P.S. We have fantastical bubbles and wands coming your way tomorrow. They are SO much fun. Stay tuned.

P.P.S. The newsletter is on its way, too, with prep for next week's Out of this World adventures.

Rainbow Water Music
A quick and fun way to bring music into your summer! Create a scale with water and food coloring and let your children try out their own music.

A quick and fun way to bring music into your summer! Create a scale with water and food coloring and let your children try out their own music.

Water makes beautiful music! And through this simple activity with food coloring, eight identical glasses, and water, you can discover an entire musical scale.

In our home, we always have music playing (or are playing music) so when I saw this graphic on E is for Explore, I knew our kids would enjoy creating their own color-infused instrument. The beauty of this activity is that it's great for any time of year, uses what you already have, and clean up is super fast, too. It also teaches measurement and fractions, pitch, color mixing, and so much more!

We used 8, 8-oz. glasses and filled them in with measurements of 8 oz., 7 oz., 6 oz., 5 oz., 4 oz., 3 oz., 2 oz., and 1 oz.. Once the glasses were full, we began the color process. Everyone was able to mix their favorite color with a wooden skewer until we have a spectrum of eight colors.

We used our silverware as the mallet for the water xylophone. At first, the kids just wanted to hit the full run of notes, up and down, along the sides. But the more they hit the glasses, the more they began to recognize music within the collection of sounds.

Can you name the tune we're playing?

We tried recreating simple songs that we all know. And as we did so, we adjusted the amount of water in each glass. Did that note sound too sharp? Or too flat? And we'd add or pour out water accordingly.

A quick and fun way to bring music into your summer! Create a scale with water and food coloring and let your children try out their own music.

A quick and fun way to bring music into your summer! Create a scale with water and food coloring and let your children try out their own music.

Have you ever tried this out for yourself? The food coloring is not necessary, but it definitely adds to the fun!! And perfect for a sunny day.

XOXO, MJ

P.S. Don't forget to check out all the ideas for the 18 Summers Challenge by searching for #18SummersChallenge. We're continuing with explosions and transformations tomorrow with our own volcanoes and soda pops!