From the category archives:

Energy and Change

Quiz – The Sound Edition

February 7, 2012 Energy and Change

Do you hear what I hear? What animal makes the loudest sound? How does sound travel? What are beats? What is the normal or average range of hearing for humans? And apart from being an incredible photo, what’s happening above? It is related to sound! Answers Friday.

Pendulum Waves

February 6, 2012 Energy and Change

First watch this video: How cool is that? And did you like the setup in the beginning when they showed you there were no tricks, it’s just a line of pendulums of different lengths. This, my friends, is all about maths. And physics, but at this level physics is pretty much applied maths. Pendulums Pendulums [...]

Colour Answers

December 2, 2011 Energy and Change

1. We see because our eyes pick up light that has bounced off the things around us. It feels a little backwards, but the colour something appears is the colour it reflects rather than absorbs. A green book would absorb every colour except green and bounce the green back to us. Colour is determined by [...]

Quiz – The Colour Edition

November 29, 2011 Energy and Change

Does anyone else find the rainbow song frustrating? Red and yellow and pink and green are not the colours of the rainbow! But there are lots of other interesting things about it. If something appears green, what is it doing to light? Is mixing coloured light the same as mixing paint? For StuffWithThing, are colours [...]

Sparkles

November 24, 2011 Activities

Little girl loves gluing at the moment. She doesn’t care if it’s a stick or brush, the sheer pleasure of spreading glue around is enough. It’s even more important than actually sticking anything to the glue, which is driving the control freak in me mad. In a bid to make it a bit different I’ve [...]

Wordless Wednesday – Playing

November 16, 2011 Babies

Have you realised how much science there is in a playground?

60 Second Science

November 14, 2011 Energy and Change

Logo belongs to 60 Second Science, definitely not to me. The Victorian Education Department sponsors a fabulous competition called 60 Second Science. It’s very simple and open – make a video of 60 seconds or less and explain some science. That’s it. Forgetting the competitive aspects, this is a great idea for any teacher or [...]

Time Answers

November 11, 2011 Energy and Change

Now if only I had more of it. What do you know about time? 1. The official unit of time is the second. It was originally defined as 1/86,400 of a mean solar day, before we realised that we don’t actually know what a mean solar day is – it keeps changing. So now [...]

Water Answers

November 4, 2011 Earth and Beyond

How much do you know about water? Check back to the quiz for the questions. 1. Generally the solid form of something is heavier than the liquid because it’s packed together more tightly and there’s more in it. But ice is less dense than water, which means for the same volume there are [...]

Cooking with Solar

October 27, 2011 Activities

In the brief weeks between freezing and pouring, I thought we’d try a solar oven. I’ve made them before with mixed success so I wanted to see if I could modify them for little ones, and there isn’t going to be a better place to do it than central Australia in hot weather. In the [...]