5-day Science Extension from ELA Nonfiction: Egg-cellent!
Editor's note: We go bonkers when Storyworks teachers help students take their learning further! We were all smiles when upstate New York 4th-grade teacher Erin Burns shared her amazing 5-day science research extension with us! This idea sprung from the December 2017/January 2018 paired texts, The History of Teeth. We convinced Erin to share this powerful lesson, including highlighted science standards, with our Storyworks community. Please give it a try or share how your class created a learning journey with our nonfiction stories.
Day 1: My 4th-grade class began by having dictionary races to look up the vocabulary that went along with the article "The History of Teeth." We put our words in our Word Nerd journals and began diving in to the text. (Note: For more info on Erin's genius Word Nerd journals, click here!) We read the story aloud and compared the ancient practices of tooth care to what we do today. It was a class consensus that we are happy we live in modern times.
Day 2: We used the Storyworks resource Finding Evidence. We were able to do a closer read and analyze the text more. Many students who wear braces came to the conclusion that they like wearing metal braces instead of cat intestines to help straighten their teeth! This article got my class thinking quite a bit about a tooth—especially since we were lucky enough to have a student lose a tooth the same week we were reading! We wondered: What is a tooth made of? How long does it take a tooth to decay? What does a dentist see when they drill into a tooth? It was time to do some research and science activities.
We read an article by Primary Junction on Teachers Pay Teachers about the different layers of a tooth: crown, enamel, dentin, pulp, and nerves. After reading, the students constructed a paper model and positioned it on red paper to represent the gums. They labeled the parts and we made a display.
Day 3: Time for an “Egg”speriment! We hard-boiled a dozen eggs. Our class split into groups of four and each group got three eggs. I explained the shells of the eggs are like the enamel on our teeth. The whites would be the dentin and the yolk would be the pulp. Each group had three jars: one with apple cider vinegar, one with dark soda, and one with water. They placed one egg in each and predicted what they thought would happen to each layer of the egg.
Day 4: We retrieved our eggs from each cup to see what happened over a 20-hour period. Students observed the color of the enamel, the texture, and even the smell! We then tried brushing the shell (enamel) to see if we could remove the stains. Students made observations and realized brushing could not undo all the damage. We placed our eggs back into the cups to see what tomorrow would bring.
Day 5: We took our eggs back out of the cups for one final observation. Students made observations of the shell (enamel) again and this time we decided to open up the “tooth” to see the inside layers. What a discovery to see what acidic and sugary foods did to our teeth! Students filled out an observation log and made conclusions based on our readings and experiment. Thank you, Storyworks, for helping us link ELA and science!
See how this lesson aligns to New York State Standards here!