WHO’S THIRSTY?
Lesson Five
Overview
Water is one resource that we cannot
live without. Water makes up about
70% of the human body. Every system
in the body requires water to function
correctly. Water aids in digestion, body
temperature regulation, transport of
essential nutrients, and body waste
disposal. On average, our body must
replace 2 to 3 quarts of water per day.
Some of this water comes from eating,
but the vast majority of water for the
body is replaced by drinking. The
human body needs about six glasses
of water a day.
At the conclusion of this section, your
students should be able to identify that
all humans need water to survive,
understand ways the human body
looses water, and how humans put
water back into their bodies.
Objectives
TEKS objectives that will be addressed
in this section include: Science 7.C,
9.A,B
Completion Time
30 minutes
Materials
1. Powdered drink mix
2. Container of water
3. 4-6 apples, depending on number of
children in class
4. 1 clear pitcher
5. Disposable 8 oz cup for each child
and yourself
6. Measuring cup
Advanced Preparation
1. Gather materials.
2. Label a cup for each child with his/her name.
3. Cut the apples into fourths.
4. Remind the students that during the H2O Hero Mysterious Chest
story that they learned people need water to survive. This lesson will
address this issue.
Setting the Stage
1. Have an 8 oz. cup of water in your hand and the other 8 oz. cups in
front of the students.
2. Sing the song:
CUP OF WATER
(Original tune: I’m a Little Teapot)
Here’s a cup of water
Clean and pure.
It is very good for me
I am sure.
Six cups a day, feeds and cleans you up
So tip your cup and
Drink it up!
3. Everyone drinks the water at the end of the song.
4. Explain the overview information to the students.
5. Tell the students that the following activity is going to show them that
water is inside their bodies and that it gets there when we eat and drink.
Activity
1. With the students in a group, let them help prepare a clear pitcher of
powdered drink mix. The students can pour cups of water into pint and
quart containers according to the recipe on the drink mix package. Also,
let the students measure the sugar.
2. Count the number of stirs it takes to dissolve the powdered drink mix
into the water. Explain dissolve.
1.
WHO’S THIRSTY?
Lesson Five
3. Serve the drinks and apple wedges to the students.
4. After the snack, ask the students questions such as:
How much water did we use to make our drink?
Where is the water now? (Inside you)
Did we put water in our bodies when we ate the apple?
How can we find out if the apple had water?
2.