The Invention of Radar for Defense — Questions and answers
Read the full story
What were Kalani and Elise trying to do when it got too dark?
Choices
- Find a new kind of plant
- Navigate the garden maze ✓
- Play with fireflies
- Build a miniature world
Answer: Navigate the garden maze
From page 1
What new important task was Robert Watson-Watt asked to do?
Choices
- Create radio waves for weather forecasting
- Build a nearby building quickly
- Find a way to detect incoming aircraft ✓
- Help Kalani understand World War II
Answer: Find a way to detect incoming aircraft
From page 4
What object did Kalani suggest Watson-Watt use to display the reflected signal?
Choices
- A discarded blueprint
- An oscilloscope ✓
- A radio antenna
- A small plant
Answer: An oscilloscope
From page 6
According to Elise's notebook, when was the first radar system installed?
Choices
- By 1940
- In 1935 ✓
- After the Chain Home system was built
- When Watson-Watt finished his work
Answer: In 1935
From page 7
Besides defense, what is one modern use of radar that Elise learned about?
Choices
- To help grow mushrooms
- For cooking meals
- In weather forecasting ✓
- To make garden tools
Answer: In weather forecasting
From page 9
What did Karim learn about his car from Elise?
Choices
- It can trim plants in the garden.
- It uses radar to avoid collisions. ✓
- It is a very old and special vehicle.
- It can travel through time like Elise's book.
Answer: It uses radar to avoid collisions.
From page 10