To collect and control power from something so it can be used means to ____________ it.
What is to harness?
Spell the 7-letter word that means to collect and use power
H-A-R-N-E-S-S
What two examples of renewable resources are mentioned that will never run out?
What are sunlight, wind, or water?
What natural disaster in William's village destroyed the crops and created a shortage of food?
What is a drought?
Why was wind a great energy source for William's village when they had no money?
What is wind is free and naturally available?
Energy sources like wind and sun that will never run out are called ____________ energy.
What is renewable?
Fill in the missing letters: G _ N _ R A T E (to produce or create).
What are E and E? (Generate)
What giant devices have turning blades that catch the wind to make power?
What are wind turbines?
Where did William go to find a science textbook with pictures of wind turbines?
What is the local library?
Is coal an example of a renewable energy source or a non-renewable energy source?
What is non-renewable?
An option or choice that is different from what is usually used is an ____________.
What is an alternative?
Fill in the missing letters: E F F _ C I _ N T (doing something without waste).
What are I and E? (Efficient)
What device collects sunlight directly from the sun to turn it into electricity?
What are solar panels?
Where did William get the parts (like bicycle frames and tractor parts) to build his machine?
What is a junkyard?
How did the neighbors react at first when William was gathering scrap metal to build his invention?
What is they laughed / thought he was crazy?
Doing a job well without wasting energy, time, or materials means being ____________.
What is being efficient?
Spell the word that means a different choice
A-L-T-E-R-N-A-T-I-V-E.
True or False: Burning fossil fuels like coal creates pollution and uses up non-renewable resources.
What is True?
What tiny object flickered on to show everyone that William's windmill actually worked?
What is a light bulb?
Both texts talk about wind power. What main energy job do BOTH large wind turbines and William's windmill do?
What is generate electricity from moving air?
To create or produce something (like electricity) means to ____________ it.
What is to generate?
Which spelling is correct: A) Renewible, B) Renewable, or C) Renewabel?
What is B) Renewable?
Why are engineers constantly trying to make wind turbine designs more efficient?
What is to catch lighter breezes and produce more power?
How did William's windmill help his family with farming?
What is it pumped underground water to the fields?
If a machine uses less power to do the exact same job, is it more efficient or less efficient?
What is more efficient?