How butterflies drink

Part 1 Do now - Measuring skills

With a ruler, measure the length of each of the lines on the companion sheet. Record them in 3 ways

The length of the line in centimetres and millimetres.
The length of the line converted into just millimetres.
The length of the line converted into just centimetres ( remember you will need to use decimals)

Task 2 - So many questions

Who, what, where, when, why and how?

Watch this video, then have a good think.

Answer the 5 questions on the companion sheet.

Task 3 - Observation

Another video to watch.

On your companion sheet, describe the video (say what you see).

Use as much detail as you can.

The water ,molecules are more attracted to the material lining of the inside of the tiny tube than the rest of the water molecules. This means the water moves up the tube.

This is called Capillary action

Other examples are:-

Drying with a towel, Plants taking water from the ground and how a fountain pen works

the Proboscis

A butterfly has a proboscis, it uses it to drink sweet nectar from flowers.

The image below is a magnified proboscis. You can see it has a tiny tube running all the way through the middle of it. But is is not like a straw, a butterfly has no cheeks and tongue to 'suck' with.

PArt 2 - Do Now

Can you name all of these peice of lab equipment?

Drag and drop the labels into the correct spaces.

Task 4 - Practical work

Cut kitchen roll into strips of different widths.

Place them so one end is dipped into a liquid and the other end is in an empty beaker. Observe what happen. Does the width of the paper towel strip make any difference?

Here is an example of what should happen

Part 3 - Do now

I have found these instructions….But I am not sure what I’m supposed to be making.

Can you work it out?

"Switch it on, add white stuff to the other thing and put bag in. Fill it up with water. Add a spoonful of powder if you want".

Task 5 - Method writing

Have a look at this WAGOLL method below. It is for making a cup of tea.

There are simple steps and order in which you must do things:

Firstly, fill up the kettle with water. Make sure the kettle is plugged in .Turn on the kettle and allow the water to boil.Place a teabag in your favourite mug then pour boiling water into your favourite mug on top of the tea bag. Allow the tea to brew for 30 seconds.Using a teaspoon, stir the tea bag around in the hot water, then remove and dispose of the teabag in the bin. Make the tea as you prefer by adding milk and/or sugar. Give the tea final stir with the teaspoon to make sure the milk and sugar are mixed in thoroughly.

Enjoy the hot beverage!

Work through task 5 your companion sheet to help you write a good method for the capillary action practical.

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