Teachers read this first assign othe r activitie

Teachers, read this first! assign othe r activitie featured in "5. Show W hat Yo Know" to y our studen ts separately through yo ur LMS. See this tut orial. How to Assign This Activity: ● If you’re assigning this activity through Google Classroom, make sure to select “Make a copy for each student” from the dropdown menu. ● If you’re using Microsoft Teams, you can also click File → Download → Microsoft Powerpoint for a version of this activity that you can upload to Teams. ● You can also have your students make their own copies of this activity: ○ Click the Share button at the top-right ○ Click “Copy Link”, then paste the URL into an email or assignment (don’t share it yet!) ○ At the end of the URL, change the word edit to copy, like so: https: //docs. google. com/presentation/d/[. . . ]/edit? usp=sharing ↓ https: //docs. google. com/presentation/d/[. . . ]/copy? usp=sharing Don’t forget: Delete this slide before sharing the activity with your students! © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. This is your copy of a Science World Google Slides activity. Except for student response boxes, all items on these slides are locked in place. You can use these slides as-is, or customize them to fit your needs. To edit any objects that are locked down, click Slide → Edit master. SCIENCE WORLD / LEARNING JOURNEY

Follow each step to complete this learning journey. 1. Think and Connect 2. Read and Watch 3. Reflect and Respond 4. Continue Your Learning 5. Show What You Know Table of Contents © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. Name: An Unlikely Hero SCIENCE WORLD / LEARNING JOURNEY

1. Think and Connect © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. Think about medicines and medical devices, like syringes, used by health-care workers. How do you think the companies that create these products ensure they are safe? Type your ideas in the space below. 1. Think and Connect SCIENCE WORLD / LEARNING JOURNEY

Watch the video. 1. What makes horseshoe crabs unusual? How does their blood protect them? 2. Read and Watch 2. Why is horseshoe crab blood helpful to the pharmaceutical industry? © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. 2. Read and Watch Read or listen to the article. SCIENCE WORLD / LEARNING JOURNEY

Consider the pros and cons of pharmaceutical companies using horseshoe crab blood to test products. Should they continue this practice? Why or why not? 3. Reflect and Respond © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. 3. Reflect and Respond SCIENCE WORLD / LEARNING JOURNEY

Research another type of arthropod, such as a lobster, a spider, a butterfly, or a scorpion. Draw a sketch of the organism and label important parts of its anatomy. Compare its features with those of a horseshoe crab (see the “Anatomy of a Horseshoe Crab” sidebar in this article). What do the two animals have in common? Explain why they are both considered arthropods. 4: Continue Your Learning © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. 4. Continue Your Learning SCIENCE WORLD / LEARNING JOURNEY

Complete one or more of the activities below. Your teacher can provide you with the skills sheet links. ● Take the article’s “Check for Understanding. ” ● Describe context clues in “Word Detective. ” ● Analyze data from a bar graph in “Crab Collection. ” ● Create a visual display of ancient Earth in “Peer Into the Past. ” 5. Show What You Know © 2020 by Scholastic Inc. All rights reserved. Permission granted to teachers and subscribers to make copies of this file to distribute to their students. Scholastic is not responsible for any edits to these materials made by educators or their students. 5. Show What You Know SCIENCE WORLD / LEARNING JOURNEY