Things that float and things that don’t!

Why does an apple float in a tub of water, but a ball of aluminum foil sinks to the bottom? And why when you take that same ball of aluminum and flattened it out and shape it into a boat it will float?

How can a whole crowd of people be in a boat and it floats when a small pebble dropped into the water will sink?

How can this be?

In ‘Things that float and Things¬†that don’t’ you can have heaps of fun guessing which things float and which things don’t. You can learn all about the density of water and how if affects the things that float (or not) on it. There is even a difference between the water in the sea and the water in a lake.

So have fun experimenting on what can float and what won’t.

Odd Stuff: NASA will pay you to stay in bed

Hate getting out of bed and just want to stay under the duvet? Then NASA could have the perfect job for you!

The American space agency- NASA- has put out an ad looking for people to stay in bed continuously for 10 weeks. You’ll have to do everything while staying in bed – reading, watching TV, eating, washing and even going to the toilet! They’ll even pay you to do it!

The space scientists’ aim was to study the effects of weightlessness on the human body, and the easiest way to do this was to get people to stay in bed for a long time. Volunteers will have to lie in bed with their feet raised slightly, and at the end of the 10 weeks the scientists will ask them to do a series of exercises to see how lying down for so long as affected them. The scientists reckon that lying down for so long will cause you to lose bone strength.

What do you think? Would you do it?