Physical Science
We summarize the week's scientific breakthroughs every Thursday.
- Life
How Muscle Cells Keep Otters Warm
In this guide, students will learn about how mitochondria help the ocean’s smallest mammal generate body heat. Then, students will discuss cell structure and energy production, diagram how mitochondria function and brainstorm a research question.
- Animals
Mighty mitochondria
Students will answer basic questions about cell structure and energy production, draw diagrams to visualize how mitochondria in sea otters may function differently than in other marine mammals and brainstorm a research question for further investigation.
- Animals
Sea otters’ cellular surprise
Students will answer questions about the online Science News article “Sea otters stay warm thanks to leaky mitochondria in their muscles,” which explores scientists’ efforts to figure out how the ocean’s smallest mammal maintains an extreme metabolism. A version of the story, “How muscles keep otters warm,” appears in the August 14, 2021 issue of Science News.
- Planetary Science
Physics Helps Alien Rain Stay In Shape
In this guide, students will learn how the laws of physics shape rain on other planets and explore how molecules interact within alien raindrops.
- Physics
Sizing up alien rain
Students will answer questions about the online Science News article “How the laws of physics constrain the size of alien raindrops,” which explores a new model for rain on planets across the Milky Way. A version of the story, “Physics helps alien rain stay in shape,” appears in the May 8, 2021 & May 22, 2021 issue of Science News.
- Chemistry
Modeling molecules in alien rain
Students will compare and contrast rain on Earth with rain on other planets and practice drawing molecular structures of various rain substances to examine the substances' physical and chemical properties. Students will use that information, along with the planetary conditions needed to form rain, to create a short weather forecast for one planet.
- Animals
Speaking of science
Students will investigate animals that regenerate, discuss how energy plays a role in the process and think about why scientists might be interested in studying animal regeneration. Students will use what they’ve learned to write a script and narrate a Science News video of regenerating sea slugs.
- Animals
Sluggish regeneration
Students will answer questions about the online Science News article “A sea slug’s detached head can crawl around and grow a whole new body,” which explores how some sea slugs regenerate. A version of the story, “No body is no problem for detached sea slug heads,” appears in the April 10, 2021 issue of Science News.
- Physics
Building better boxes based on beetles
In this activity, students will learn about the seemingly indestructible diabolical ironclad beetle and review Newton’s laws of motion and force diagrams. Then, students will design, build and test crush-resistant packaging using biomimetics, the practice of solving problems using solutions inspired by biological structures and systems.
- Oceans
In hot water
Students will answer questions about the online Science News article “Earth’s oceans are storing record-breaking amounts of heat,” which explores how the upper oceans’ heat storage capacity has changed over time. A version of the story, “Earth’s oceans broke heat records in 2020,” appears in the February 13, 2021 issue of Science News.
- Earth
Communicating data
Students will discuss how graphs and quantitative analogies are useful for interpreting and understanding data. Then, students will analyze and compare how effective each strategy is at communicating a scientific claim. As an extension, students may propose an alternative method of displaying or explaining given data.
- Chemistry
Bonds in limbo
Students will answer questions about the online Science News article “This weird chemical bond acts like a mash-up of hydrogen and covalent bonds,” which explores new research that suggests chemical bonds exist on a continuum. A version of the story, “Chemical bond acts like a mash-up,” can be found in the January 30, 2021 issue of Science News.
