Very Bouncy Science - and History

 

Bounce! A Scientific History of Rubber 

by Sarah Albee; illus. by Eileen Ryan Ewen 

48 pages; ages 6-9

‎Charlesbridge, 2024

themes: rubber, science, invention

 It can bounce, bounce, bounce!

Rubber has been around for thousands of years, and chances are that you’ve got some in your dresser drawer or maybe even your pocket. Where that rubber came from, what makes it so stretchy, and how it’s been used throughout history is the meat of this book.

What I like about this book: Sarah begins with how Indigenous people living near rainforests in Mexico and Central America created and used rubber. 

She explains how European explorers took rubber back with them – along with the gold and riches they stole – and how rubber became part of our lives. Sprinkled throughout are spreads labeled “The Science” where she explains bounce, polymer chains, and why pure rubber fails in heat and cold.

I also like the illustrations – they add a touch of fun to this bouncy history. And there is Back Matter! Sarah discusses names of the Indigenous people, and shares some of the troubling details about the sometimes violent history of the rubber industry and some of the environmental issues. She also includes a timeline of the last 3,500 years of rubber history.

Bouncy Science Beyond the Books: 

Compare bounciness of a variety of balls. You’ll need a hard surface for your bounce test and a way to measure height - you can tape a couple yard-sticks or tape measure against a fence, wall, or tree. Drop each kind of ball from as high as you can reach and write down how high it bounces.

Measure stretchiness of a rubber band. First, measure the width (how “fat” the rubber band is) and the loop-length (how long it is before you stretch it). Now hook one end of the rubber band over the end of a ruler and gently stretch the rubber band. How far can you go? If you’re outside, you can let go and see how far your rubber band flies. Try different rubber bands – and remember to pick them up when you’re finished.

Make your own rubber from plants in your yard. Caution: don’t do this if you are allergic to latex! Break open the stem of a milkweed or dandelion and collect the latex in a spoon. Cover the end of your finger with the sap, all the way to the first knuckle-bend and let the sap dry. After 10 to 15 minutes, roll the dried sap off your finger. It will make a slightly stretchy band. To make a “rubber” ball, put a half a teaspoon of sap into 1/4 cup of water and stir with a straw. Slowly add a little bit of vinegar. The acid in the vinegar will make the latex stick to the straw. Gather the latex into a ball, squeeze out the water, and give it a bounce.  

 

Sarah Albee is a member of #STEAMTeam2024. You can find out more about her at her website.

Today we’re joining Perfect Picture Book Friday. It’s a wonderful gathering where bloggers share great picture books at Susanna Leonard Hill's website. On Monday we'll be hanging out at Marvelous Middle Grade Monday with other  bloggers. It's over at Greg Pattridge's blog, Always in the Middle, so hop over to see what other people are reading. Review copy provided by the publisher.