WaterWaterWaterWaterInvestigation 1Investigation 1

Part 1: Looking at WaterPart 1: Looking at Water

Essential Question• What factors influence the shape

of water?

What You Will Learn• Safety in the classroom

• What water is

• What water does on different surfaces.

Safety in the Classroom• Always follow the safety procedures

outlined by your teacher.

• Never put any material in your mouth.

• Do not taste any chemical unless your teacher specifically tells you to.

Safety in the Classroom• Do not smell any unknown

material.

• If you teacher asks you to smell a material, wave a hand over the material to draw the scent toward your nose.

Safety in the Classroom• Avoid touching your face, mouth,

ears, or eyes while working with chemicals, plants, or animals.

• Do not mix unknown chemicals just to see what might happen.

Safety in the Classroom• Always wash your hands

immediately after using chemicals.

• Clean up spills immediately.

• Clean up your work space after each investigation.

Safety in the Classroom• Be careful when using sharp or

pointed tools.

• Always make sure that you protect your eyes and those of your neighbors.

Safety in the Classroom• Report all accidents, even small

ones, to your teacher.

• Follow directions and ask questions if you’re unsure of what to do.

Safety in the Classroom• Behave responsibly during science

investigations.

• If you cannot follow directions the first time, you will have to sit out and be an observer.

Looking at Water• We are going to start an

investigation of a very important substance, water.

• Look at the cup of water that I am holding up.

Looking at Water• An earth material is a substance

that makes up or comes from the earth.

• What do you know about water?

• Fill in your worksheet with a few notes. You do not have to write in sentences.more

Looking at WaterJournal Entry

• What does water do?

• How is water used?

• Where is water found?

• Let’s share some ideas.

Looking at WaterVocabulary

• Property – a characteristic of a material, something you can observe, such as shape, color, temperature, and small

Looking at Water• What happens when water gets

spilled, splashed, or dropped on something?

• Does water do the same thing on all surfaces?

Looking at Water• We are going to use

– waxed paper– aluminum foil– paper towel– copy paperto investigate what happens when you

put water on different surfaces.

How to Use a Dropper• Squeeze the bulb.• Put the tip into the water• Release the pressure on the bulb• Take it out of the water.• Squeeze the bulb gently to release one

drop at a time.• Put the dropper on the tray when it is

not in use. Do not put it in the cup.

Investigation• You will place individual drops of

water on the different surfaces and observe and describe what you see.

• Observe the drops from all angles and pay attention to the shapes the water makes.

• Make careful observations.

Directions• The getters will get a tray with enough

materials for each pair of students.

Directions• No. 1 student will drop water on

aluminum foil.• No. 2 student will drop water on a

paper towel.• No. 3 student will drop water on waxed

paper.• No. 4 student will drop water on a piece

of copy paper.

Directions• Turn to the first page in your water

booklet.• These pages will be graded and

will make up a large part of your science grade.

Directions• After you have put drops of water

on the four different materials, you will record your observations on the Water on Surfaces page. Draw what you observe in the box and explain what you observe with words on the lines.

Directions• You have ten minutes for this

activity.

• Materials

• After 10 minutes go to the next slide.

Questions• What happens to the circles of water as

more and more drops are added to make big drops?

• How close together can you put two drops of water without them touching? What happens when they do touch?

Questions• Can a drop of water bounce off

another drop of water?• Can you drag a drop of water

around with the dropper tip?• What shape are the drops of water

as they fall through air?

Collect Materials• The Materials Collectors will collect

the materials and put them back on the counter.

• Make sure all of your materials are on the tray.

Observations• You have 5 minutes to complete

your observations.

• Be sure to draw the picture and write words.

Discuss the Results• Reporters:

• What happened to the drops of water on each of the materials?

Vocabulary• Absorb – When water soaks into a

material, like the paper towel, we say the towel absorbs the water.

• Beads – When water sits on top of the material in drops, we call the drops beads and say the water beads up on the surface.

Discuss Results• Identify the materials that

absorbed the water and those on which it formed beads.

• Describe the shape of the water beads.

Vocabulary• Water – a liquid earth material.

• Property – a characteristic of a material or an object, something that you can observe such as color, smell, and taste.

Vocabulary• Absorbed – water soaked into

another material

• Beads – what water forms on some materials

Content - Inquiry• We will answer these questions in

your journal.

• What happens when water gets spilled, splashed, or dropped on something? more

Content – Inquiry • Does water do the same thing on

all surfaces?

• Do you have anymore questions?

Record Observations• Record your observations during

these tasks on the Surface Tension Record sheet.