Friday Science

To wrap up "All Those Secrets of the World" we discussed how in the 1400's people thought the world was flat and that by sailing toward the horizon they would eventually fall off the edge of the world. Christopher Columbus figured out that the earth was a sphere by observing a butterfly and orange.

On a flat world, a ship (or puppet) would always be seen,
it would just get bigger the closer it got.

With a spherical world, you wouldn’t see the ship as it begin to sail.

You would then begin to see the top most part of the ship
or puppet ears in our demonstration.

Finally you would see the whole ship or puppet.

2 by 2 . . . .

. . . I'm not speaking of all the rain we've been getting and wondering if an Ark is being built. Today, with Thing Two, we quickly covered counting by two's. In the manual, for All Those Secrets of the World, it is suggested using marbles for counting. We have plenty - check. Quick, grab the camera, because this week seems to be more of a conversational week with some photo's for the memory. Here's what we discussed:

A group of ten marbles
and another fuzzy photo :(

The digit 10 made out of marbles.

Five groups of two. They were lined up in groups of two to count off.

Thing two rattled off the even numbers, then had to show what the odd
ones were as well.

Art and Shadowing

Today, for art in "All the Secrets of the World" we discussed shadowing, how a shadow is cast from it's light source. If the light source is above you (think bright, sunny day, at noon) you won't have much of a shadow; when the light source is in front of you, your shadow is behind you; when the light source is behind you, your shadow is in front of you. Here's our photo demonstration:

Here's the light source in front of Thing Two and his shadow
behind him.

Here's the light source behind Thing Two.
Yup, you guessed it, his shadow is in front of him.

Don't recall which photo it was during, but he got a bit confused, because there was enough light coming in that he told me the wrong direction of the shadow. I had to rephrase the question to something like "Which way is your shadow going as a result of the flashlight?" He got it then the correct answer.