How Does a Waterfall become Electricity? p.12-15

DAY 3

PAGES 12-15

REVIEW & SHARE
WRITTEN RESPONSES

REVIEW & SHARE WRITTEN RESPONSES

1
Use our map and the illustration on page 11 to write a
descriptive definition of a waterwheel.

wat • er • wheel

(closed, r-controlled, vowel team)

•moving water for
irrigation

•powering mills

It has flaps that are
turned by running

water.

It is connected to a

shaft.

The shaft turns gears
that are attached to
different machines.

•ramp

•screw

•lever

machine

TEXT STRUCTURE
ANCHOR CHART

PREVIEW TEXT STRUCTURE ANCHOR
CHART

6
8

Subtopic Question

Brief Main-Idea Answer

What is a waterfall?

How does falling water get power?

-steep drop (cliff) in a river’s course that causes the
water to fall directly downward
-waterfalls get their power from gravity, the further
the fall, the more power

What is a waterwheel?

What were the early uses of water power?

-a wheel pushed by water to power machines
-grinding grain, irrigating crops, getting water to
villages, create iron, make paper, etc.

VOCABULARY

• Dam is a noun or a

verb that means a
manmade structure
that controls the flow
of a river.

dam
•

closed

• Reservoir is a noun that

means a large body of
water that can be used as
a source of water for a
town. Dams usually create
reservoirs.

• You can see the root word

reserve, meaning to keep
for later use.

reservoir

• •

closed

vowel
team

•

r-controlled

Multiple Choice

res-er-voir

What type of syllable is: voir

• Hydroelectric is an

adjective that means
power made from
water. Hydro means
water, so
hydroelectric
means electricity
made from water
power.

hydroelectric

•

open

open

•

open
•

closed

•

closed

Multiple Choice

How many syllables are in the word, hydroelectric?

• 4

• 5

• 6

• 3

Match

Match the following

• waterwheel

• dam

• reservoir

• hydroelectric

manmade structure that uses a river to push it, which allows it to turn shafts that power a machine

manmade structure that controls the flow of a river

large body of water created by a reservoir

power made from water

• manmade structure that uses a river to push it, which allows it to turn shafts that power a machine

• manmade structure that controls the flow of a river

• large body of water created by a reservoir

• power made from water

CHORAL READING

7
4

Think about the invention of a dam as a
problem and solution.

Today we will be reading pages 12-15.

FIRST FOCUS

7
5

7
6

Open Ended

What are some uses for a reservoir?

7
7

Multiple Choice

Hydroelectric plants are built at the ______ of a dam.

• top

• middle

• bottom

Multiple Choice

True or False?

Hydroelectric plants are located at the bottom of a dam so gravity will increase the power of the water.

• True

• False

7
8

7
9

Pages 12–15 (Building a Dam
and It’s Electric!)

Page 15, after: Once water
passes by the turbine, it
continues out of the dam and
onward downstream.

I can use context here to
figure out what a turbine is. I
can see that it is like a
waterwheel on its side. I can
also figure out that there must
be a relationship between the
words turn and the root in
turbine. A turbine is some sort
of a machine that turns.

ENGAGE STUDENTS IN CHORAL READING

Multiple Choice

What makes the electricity at a hydroelectric plant?

• the dam

• the turbines

• the generator

• Wind turbines

Open Ended

Let's review the first focus. How was the invention of the dam a problem & a solution?

SECOND READING

8
1

Now think about what questions
you still have about how water
generates electricity.

SET NEW FOCUS FOR PARTNERS

7
5

7
6

7
7

7
8

Open Ended

List at least 2 questions you still have about how water generates electricity.

COMPREHENSION
QUESTIONS

Multiple Choice

Why do we need to build dams to create electricity?

• to help the environment

• to create a recreational area for swimming and fishing

• to generate revenue for the local economy

• to make the flow of water steady and so lots of water can build up

Open Ended

How can dams have 2 uses?

Multiple Choice

What was a negative effect of the Three Gorges Dam in China?

• it caused a traffic jam because everyone wants to go boating and fishing in the reservoir

• it makes too much electricity

• it flooded the homes of 100s of people

• it flooded the homes of 100,000s of people

WRITTEN RESPONSE

ASSIGN WRITTEN RESPONSE

8
9

Look at the illustrations on pages 14 and 15. How do you think
they work together?

1

Open Ended

How do the pictures on page 14 and 15 work together?

Hotspot

Identify which part of a hydroelectric plant makes electricity with a point.