Kategori: English

How to Shoot Frozen Soap Bubbles

Issåpbubbla

The only thing needed is a bowl of soap water, a straw and a little patience. Then you can blow beautiful frozen soap bubbles that give unique pictures.

 

Perfect frozen bubbles with secret ingredients
You can either use the ready mixture in the soap bubble containers that you buy in the toy store, or you can make your own blend based on the following recipe:
  • 35 ml detergent
  • 35 ml of glycerin
  • 2 ml of sugar
  • 200 ml hot water
Glycerin makes the bubbles thicker, and the sugar causes the surface to get the beautiful crystals. Then  to the problem of how to freeze the bubbles so that they can later be photographed.

For best results, the temperature should preferably be below or below 6 degrees Celsius. It is possible to freeze bubbles even in milder weather, but it is more difficult and takes longer.

It is also best to perform the experiment when it is windless so that the bubbles do not burst or blow away before they land and can freeze.

How to Shoot the Bubbles:

  1. Select a location where it falls in a lot of light and there is a nice background. It may be good to have a cold surface, eg. a snow or ice-covered garden table that you can blow in the bubbles from up close. Otherwise you risk freezing in the air and bursting when they land.
  2. Set the camera so that the focus point is approximately where the bubble will land. Put the camera on a tripod so you have your hands free to blow bubbles.
  3. Dip the straw in the soap mixture and blow a bubble. Blow gently and avoid making the bubble too large. Once the soap bubble has landed, you can adjust the camera’s focus as needed to get the details in focus.
  4. Shoot! Once you have learned to freeze your bubbles, you can try to make a timelapse video. You could use, among others Lapse It eller Osnap!

Hints for an Exploring Methodology

This idea is taken from Ann-Catherine Henriksson’s course ”I explore my surroundings” at the Center for Lifelong Learning (CLL) in Turku.
Handdockor
To clarify the process when reasoning about natural science phenomena, one can introduce five toys/hand puppets with different characters:
• 1 who ponder, ponder, questions
• 1 has lots of ideas / hypotheses
• 1 practitioner – how should we do, what do we need for things to implement it
• 1 organizer – how should it be documented, should we tell, draw, take pictures ..
• 1 storyteller – tell us what we have come up with

Try Geocaching

Join the world’s largest treasure hunt. It takes you places you never knew existed!

There are millions of smart containers called geocaches hidden in almost every country on earth, just waiting to be found. There are probably some close to you right now.

If you want to try, you can try either Geocaching, a slightly simpler app in the free version or Cachly, a slightly more advanced app for some euros.

Maps

Ipad has a good map app already installed.

Interesting ”to play with” is that you can get the app to ”fly over” a city and show how it looks. However, this only applies to larger cities.

If the children have been travelling, it can be fun to see where it is and how it looks.

Keep in mind that the time to go there says more than the distance in kilometers for the children.