Lesson 2 materials that absorb water

Marie Jaja T. Roa Santa Maria West Central School Schools Division of Ilocos




Absorbs means to take

something in such as water

in a natural or gradual way

Repels means to move

away



Absorb or Repel?


Do the following activity:Activity 2: Which Materials Absorb Water and Which Do

Not?


Basin of water Dropper Tray Ping-Pong balls Cotton balls Sponges Paper Popsicle stick

What you need

Face towel Rag Tissue paper Wax paper Pebbles Plastic bag Copy of worksheet


What to do:

1. Choose among your group who will act as organizer,

leader and presenter.

2.The organizer will get all the materials needed for the

activity.

3.The leader will select the first object, put it in a basin,

together with the members, observes the material’s

characteristics and write them in the space provided in

the worksheet.

4.Pour a tablespoon of water into the material. Observes

what happens.


What to do:

5.Lift up the material and squeeze. Let the water drip

down on the basin. Did the water come out? Did

the materials get wet? Is the material heavier when

wet?

6.Record your observations.

7.Do the same for each object.

8.After observing all the materials, clean up the

working table.


1. What characteristics did you observe from each of the materials before placing them in water?

2. When you added water to the material, what happened to the water?/to the material?

Guide Question/s:


3. When you lifted the materials and squeezed it, did water come out? Did the material get wet?

4. Is the material heavier when wet? Why?

Guide Question/s:



Water soaks into many materials. These materials

absorb water. They are called porous.

Porous materials are materials having small holes that

allow air or liquid to pass through.


There are a lot of materials that water will not soak in

to. These materials repel water.

These non- porous materials like plastic and rubber,

does not allow water to pass through.




1. Why do you think some materials absorbed

water and other did not?

2. Why would some people prefer plastic bag

than a paper bag?

3. During rainy days, what kind of material are

you going to use to prevent you from getting

wet? Explain why.

Education

Lesson 2 materials that absorb water