Free printables
Book 19 science quiz: free printable worksheet
A free 10-question matching quiz for kids, parents and teachers, based on A Million Whys Book 19, The River Expedition. Every fact comes straight from a page in the book. Write the letter of the matching question next to each fact. The answer key links to the video for each question.
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Name: ______________________ Date: ______________ Score: ____ / 10
The questions
- A. Where Does a River Begin?
- B. Why Do People Argue About Where a River Really Starts?
- C. What Colors Can River Water Be, and What Do They Mean?
- D. How Can You Read a River on a Map?
- E. How Do American Eels Swim From Rivers to the Faraway Sargasso Sea?
- F. How Did Rivers Become Highways?
- G. How Does a Hydroelectric Dam Make Electricity?
- H. What Is a Levee?
- I. Can the Ocean Push a River Backward?
- J. How Do Scientists Count Fish They Can’t See?
Match each fact to its question
- Scientists discovered the eel nursery in the Sargasso Sea about a hundred years ago. ______
- Some natural levees form when floods drop sand along a river’s edges. ______
- A generator works by spinning magnets near coils of wire. ______
- Blue river lines on maps get thicker toward the mouth. ______
- Fish counters at fish ladders use cameras and software to tell species apart. ______
- Some northern rivers run dark brown like tea. ______
- Different maps sometimes show different source points for the same river. ______
- The Bay of Fundy has some of the highest tides in the world. ______
- Some rivers start from a trickle you could step across. ______
- Voyageur canoes could carry several tons of cargo. ______
Show the answer key
- E (Scientists discovered the eel nursery in the Sargasso Sea about a hundred years ago. Book 19, Question 62)
- H (Some natural levees form when floods drop sand along a river’s edges. Book 19, Question 106)
- G (A generator works by spinning magnets near coils of wire. Book 19, Question 91)
- D (Blue river lines on maps get thicker toward the mouth. Book 19, Question 46)
- J (Fish counters at fish ladders use cameras and software to tell species apart. Book 19, Question 137)
- C (Some northern rivers run dark brown like tea. Book 19, Question 32)
- B (Different maps sometimes show different source points for the same river. Book 19, Question 16)
- I (The Bay of Fundy has some of the highest tides in the world. Book 19, Question 123)
- A (Some rivers start from a trickle you could step across. Book 19, Question 1)
- F (Voyageur canoes could carry several tons of cargo. Book 19, Question 77)