Saturday, March 5, 2011

Week of March 7, 2011

I can't believe it is already March!  This year is going by so quickly.

This week in Math class, we will once again be focusing on surface area.  You will have two sheets to complete for homework.  This Thursday will be a test on finding the surface area of cubes, rectangular prisms, and square-based pyramids.  This website offers some great instruction on finding surface area.

In science, we will be talking about constellations and galaxies.  We will be having a test on stars (that includes information we studied this and last week) on Friday.  In addition, your "Seeing Stars" choice sheet is due Friday.  Please be sure you have completed any 4 choices on that page.

Here are your vocabulary words for our studies concerning stars:

Altitude- the angle between an object in the sky and the horizon

Constellation- a region of the sky that contains a recognizable star pattern and that is used to describe the location of objects in space.

Black hole- an object so massive and dense that even light cannot escape its gravity

White dwarf- a small, hot, dim star that is the leftover center of an old star.

Supernova- a gigantic explosion in which a massive star collapses and throws it outer layers into space.

Galaxy- a collection of stars, dust, and gas bound together by gravity

Globular cluster- a tight group of stars that looks like a ball and contains up to 1 million stars.

Nebula- a large cloud of gas and dust in interstellar space; a region where stars are born.

Quasar- a very luminous object that produces energy at a high rate; they are thought to be the most distant objects in the universe. 

Protostar- a ball of gas and dust.  Gravity pulls the gas and dust together, and its center gets hotter (the first stage of the lifecycle of a star)

Above is a movie of our Constellations and Galaxies notes for this week.

I'm looking forward to a great week!

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