What is this? / Simple or complex machine?
A vacumnn cleaner / It is a complex machine
What is this? / Simple or complex machine?
A hammer / It is a simple machine
What is this? / Simple or complex machine?
A rake. It is a simple machine
What is this? / Simple or complex machine?
An iron. It is a complex machine
What is this? / Simple or complex machine?
A spanner. It is a simple machine
What is this? / Simple or complex machine?
A screwdriver . It is a simple machine
What is this? / Simple or complex machine?
A washing machine. It is a complex machine
What invention was invented by Samuel Morse?
The telegraph
What invention was invented by James Watt?
The steam engine
How can we use energy form the sun, wind and water
with the help of solar panels
