12 Archives

Bell Ringer

Instructions: Answer the prompt provided by your teacher.

Instructions: Watch the Science of Electricity video and listen for the vocabulary words.

Word	Definition	Example
Silicon	noun; A natural element from sand and rocks that can act as a semiconductor, used in electronics and solar panels to help turn sunlight into electricity.	“This [way] uses silicon – like in a computer chip – to turn light into electricity.”
Computer Chip	noun phrase; a tiny electronic part typically made of silicon that processes or stores information in computers and other devices	“This [way] uses silicon – like in a computer chip – to turn light into electricity.”
Generator	noun; a machine that converts mechanical energy into electrical energy	“The other 99% comes from generators.”
Copper	noun; a metal that easily conducts electricity and is used in wires and motors	“A generator is just magnets surrounding a core of coil wire, usually copper.”
Coil	noun; a loop or series of loops of wire, often used in electric devices to create a magnetic field	“The coil turns within the generators and makes electricity…”
Turbine	noun; a machine that spins when water, air or steam flows through it to generate electricity	“Water makes steam, and steam turns the turbine.”

Instructions: Circle the correct answer based on what you learned in the Science of Electricity video.

Q1. According to the video, 99% of the world’s electricity is produced using which of the following?

Q2. Which of the following correctly shows the sequence of how heat is used to generate electricity, according to the video?

Silicon chips heat up in sunlight; a turbine transfers heat to boil water; steam produces electricity.
Heat boils water to make steam; steam turns a turbine, which runs a generator to make electricity.
Sunlight heats silicon chips; silicon chips produce steam; steam turns turbines to make electricity.
Copper coil heats up in sunlight; a turbine transfers heat to boil water; steam produces electricity.

Q3. According to the video, what percentage of the world’s electricity comes from water flowing through a dam (hydropower)?

Q4. Which of the following lists common sources of heat used by large power plants to generate electricity, according to the video?