Science: Dancing Currants

This term, 2KM and 2KJ are investigating science. Science is discovering how the world around us works through testing and observation.

Last week we made paper “whirlybird” helicopters in Science.  Our experiment today was called “Dancing Currants”.

To do this experiment we needed a glass jar, spoon, vinegar, bi-carb soda and currants.

P1030410

The procedure of the experiment was:

1. Pour some vinegar into the jar.
2. Drop the currants into the vinegar and stir.
3. Add a teaspoon of bi-carb soda to the vinegar.
4. Stir and watch what happens.

The aim of the experiment was to observe and explain the chemical reaction that took place.

This is a video of our experiment. Look at the chemical reactions caused by the bi-carb soda and vinegar.


 

Why did this happen?
Bi-carb soda causes a chemical reaction with vinegar producing a gas called carbon-dioxide. The bubbles stick to the currants, floating them to the top. When the currant hits the surface, the bubbles on the top pop so they sinks again.

The reason why the currants floats to the top is because the bubbles stick to the sides of the currants and make the currant more buoyant. Buoyant means that something floats more easily. The bubbles make the currant float the way a life jacket makes a person float.

What do you think of our science experiment?

Whirlybird Paper Helicopters

This term, 2KM and 2KJ are exploring some science.

Today we learnt about flight and made whirlybird paper helicopters. We experimented with heights, lengths and weights to see how this affected how the helicopter flew.

Here is a video of Alana, Amelie, Liam, Andrew, Harry, Anthony and Paris flying their helicopters!

You can find out more about the whirlybird paper helicopter lesson and get the pattern to make your own by clicking here.

Have you ever made a whirlybird paper helicopter?

How did your helicopter go? What happened when you changed something about your helicopter?

Origami Fun!

The students in 2KM and 2KJ love using the iPod Touch as part of their reading rotations each week.

We have been doing a lot of “listening to reading” to practise our reading strategies but we can do all sorts of activities on the iPods using apps, videos, podcasts and music.

The students are enjoying learning some origami using instructional videos on the iPod Touch this week. Origami is the Japanese art of paper folding.

Watching the videos helps us to learn to follow instructions and work as a team.

Last week’s origami video was “How to fold an origami swan”.


This week’s origami video is “How to fold an origami sailboat”

2KM and 2KJ’s tips for making origami are – listen to the video carefully, pause and replay the video when you need to and press down hard on your folds.

How did you go making the swan and sailboat?

Have you made any other origami before?

Have you used an iPod Touch before?

Skip Counting

We are learning about skip counting in 2KM and 2KJ.

Skip counting helps us

  • count things more quickly
  • learn about the multiplication times tables

Skip counting means counting by a number that is not one, for example counting by twos, fives or tens.

Today we practised our skip counting and used counting by fives to help us solve this problem….

How many fingers do 18 people have?

Watch this video to find out!

How many fingers do 18 people have?

Why did we count by fives?

When do you use skip counting in everyday life?

What do you know about skip counting patterns?

Leo Asks About Quality Commenting

Hi, my name is Leo and I am 2KM and 2KJ’s class mascot!

I am right there alongside my friends in 2KM and 2KJ as they learn lots of new things and I am having so much fun being in this wonderful class.

I just ♥ to collaborate with all my blogging buddies around the world. In fact, I ♥ school so much that I sleep there every night!

To find out more about me, you can visit my very own page on the blog.

This week the students in 2KM and 2KJ have been learning about quality commenting. I have been a bit busy sleeping and skyping this week and I haven’t been paying close attention! Whoops! 😳

Juan Pablo and Mr Salsich gave me the idea of making my very own video so the students can help me out. The students in 2KM and 2KJ and I ♥ watching Juan Pablo’s videos.

Listen to my video and then help me by leaving a comment!

Go on, leave a comment now and help Leo out!

If you need a hint, check out this page on our blog for some tips.