Let's move water

Tuesday, 25th of October 2022

Hello! It is a new week, a new adventure. Today is going to be a really good day, you'll see.

I am going to introduce you to Mudkip, he will review with you the movements of water.

I hope you enjoy it!

Hi, my name is Mudkip!

Last week you learned about the movements of the ocean. I have some activities to check if you understood it and have studied during the weekend. 

Let's get started!

Activity 1.

In groups, look at the two photos of this same place and answer the questions.

1. Is this an ocean or a lake? Why?

2. Is it salt water or fresh water? Why?

3. Is the tide coming in or going out? Why?

Activity 2.

Read the text and answer the questions. (Click on the title to go to the activity).

Movements of the Ocean (Resource: Liveworksheets)

1. What percentage of the Earth is covered by water?

a) 10%         

b) 50%

c) 75%

d) 90%

2. Complete the statement below.

About one tenth of the water on Earth is made up of _______ and nine tenths of it is made up of ________.

3. How does water move from one ocean to the other?

a) Currents cause water to move from one ocean to the other.

b) Tides cause water to move from one ocean to the other.

c) Waver cause water to move from one ocean to the other.

4. Explain how waves form.

a) Waves are formed when gravitation from the moon pulls on the Earth.

b) Waves are formed when the sun heats the Earth.

c) Waves are formed when energy from the wind transfers to the water.

5. What holds things down on Earth?

a) Energy

b) Gravitational force

c) Magnets

d) Ocean currents

6. When do the high and low tides occur?

a) Twice a day.

b) Twice a month.

c) Twice a year.

Wow! You did an amazing job!

Do you remember that Squirtle told you that today was going to be a good day? Well, he was right because we are going to do an experiment!

Making waves!

Materials: tray, water and straw.

Process: First, we pour water into the tray. Next, we introduce part of the straw into the water. And finally, we blow.

Making ocean currents!

Materials: Clear tray, glass, ice cube maker, red and blue food coloring, and container with dropper.

Process: 

Step 1. Fill the glass with water and add a few drops of blue food coloring.

Step 2. Pour the mixture into the ice cube maker and put it in the freezer.

Step 3. Fill the dropper container with hot water and add a few drops of red food coloring.

Step 4. Fill the clear tray with room temperature water.

Step 5. Take two ice cubes and place them on one end of the tray. At the other end add drop by drop the hot water dyed red.

Step 6. Observe the movements of hot and cold water.

Observations: In the oceans, the colder waters are denser and go to the seabed, desplacing the warmer waters to the surface. This movement of the water masses generates the marine currents.

Homework

Think about the first experiment we did in class. What happens if you blow too hard? And if you blow weakly? What causes the waves?

Enjoy the day! A hug from Mudkip.