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This test is run by .
Note that your final mark will not be saved in the system.

3.1.2 Energy generation and storage Reorder

Target Level

4-5

Running Total

Attempt

1 of 3

Drag and drop the boxes into the correct order.

Put the followings events in the correct order to show the process of generating hydroelectric energy.

The turbine blades rotate and generate electricity.
During the night electricity is used to pump the water back up the pipes to the top reservoir.
When the demand for electricity increases, the gates are opened.
The stored water flows through pipes downhill.
Water is stored in a reservoir at the top of the site.
The moving water turns the blades of the turbine at the bottom of the pipes.
The electricity is fed into the national grid.

This is your 1^st attempt! The marking algorithm gives more marks for getting the right order first time.

Pass Mark

70%