Ms. Bowen Smath: February 7

Announcements:

No school for Teacher's Convention Thursday (Feb 13), Friday (Feb 14) and Monday (Feb 17 - Family Day)

Math:

This week we continued to work on converting between percent, decimal and fraction and accurately placing these numbers on a number line. Students are becoming quite fluent in these three expressions of number!

Students also had an opportunity to show part of a whole in many forms. They practiced assembling a puzzle and then made their own.

Science:

Next week we are having a vocabulary test.
Here are the words and definitions you will need to know:

Seismologist - A scientist that studies earthquakes
Seismograph - A machine or instrument that records and measures the strength of earthquakes
Seismic Waves - Waves of energy that travel through earth's layers as a result of earthquakes
Earthquake - a shaking or other movement of part of the earth's surface. It is caused by movement deep within the earth.
Bedrock - The solid layer of rock in the earth's surface, found beneath soil, and, or gravel
Primary Waves - Smaller waves that travel through solid, liquid and gas and warn that an earthquake is coming
Secondary Waves - Medium sized waves that only travel through solids
Surface Waves - Largest and most destructive waves, travel on the surface
Richter Scale - Scale from 1-10 that measures the magnitude of an earthquake
Magnitude - Size or strength of the earthquake
Focus - Point underneath the earth's surface where the earthquake begins
Epicentre - Point on the earth's surface where the earthquake is felt most intensely
Plate Tectonics - Theory of how the plates move (rock lithosphere on gooey magma asthenosphere)
Continental Drift - A historical theory where Alfred Wegener explained that the continents were once all together as the supercontinent of Pangaea. He used fossil evidence as well as the shape of continents to prove this theory.
Plate Boundaries - Place where two tectonic plates are interacting
Divergent Boundary - Two plates moving apart - creates volcanoes and the mid-oceanic ridge
Convergent Boundary - Two plates coming together

continent-continent convergent boundaries create mountains
continent-ocean convergent boundaries - the oceanic plate subducts under the continental plate

Transform Boundary - Two plates moving in opposite directions, often causes earthquakes
Subduction - Movement of the oceanic plate sideways and downwards into the mantle beneath a neighboring plate
Lithosphere - The outside rock layer of the earth made of the Crust and Upper Mantle
Asthenosphere - A part of the Mantle right below the Lithosphere on which the lithosphere moves