Wednesday, 5 February 2014

Updated: 7A Speech Arts Competition - February 19

Speech Brainstorm (3 storms required, each on a separate page)

Answer each prompt:

1: Are you speaking to Inform or Persuade?
2: Is your delivery going  to be serious or comedic/satirical?
3: What is the main message or moral?
4: What are 2 possible titles?
5: What is the topic?

You should click on the dropbox link to find and read 3 supporting documents about Speech Arts: https://www.dropbox.com/sh/usmie9ojhu481fj/CKNt0Jq5je

Your brainstorms are due on Monday, 10 February during Language


Monday, 3 February 2014

On borrowed time

All 7A students shall be seated in their seats at 0845hrs sharp. This is 5 minutes prior to the start of school. You are allowed to enter the school at 0840.

As a class, make this happen. Demonstrate your commitment to helping each other as a class. Be 7A. Be ambitious,  responsible, dedicated, and daring.

Did you miss today's math test?

Whenever you miss a test you are expected to contact the teacher via email as soon as possible.

Anyone who missed today's test SHALL be expected to be at school at 0720hrs. Meet directly in the gym to write the test. Bring what you need.

If you can not make it you need to email your teacher tonight.

Assigned Administration Assistance

Dear Followers of the 7A Blog,

Today students received notes to be signed by their parents regard a variety of missed core-subject deadlines. A point scheme was marked on the side that subjectively related to the number of periods that were lost based on incomplete work, forgotten work, and being unprepared.

At this point in the school year week-long deadlines should not be missed.
 
All teachers appreciate students who are consistently on time.

Students will sign up for admin. assistance in room 16 between 10 and 14 February (apologies as the letter states March by accident). There are fifteen 30min sessions available. There should not be a reason why students can not complete their additional duties.

Duties will include student file maintenance, cleaning and preparing lab equipment, classroom beautification, and assisting other Rotary teachers with similar responsibilities.

While there are many different factors, one could conclude that the general abatement of punctuality is attributed to the lack of a seating plan. As a community 7A requires much more oral refocusing cues in both Core and French.

A new assigned seating plan will be in effect tomorrow morning. Moral of the story: you reap what you sow...let us move forward by returning to meeting expectations.

Please email the teacher if there are any specific concerns.

Math Review Percentage Apologies

The questions on the extra study sheets from last week were complied from a question bank used for tutoring. The Percent-Interest questions are WAY beyond the scope of Grade 7, and will not be on the test (7-9). The other percentage questions are a good review.

My sincerest apologies for this oversight.

Sunday, 2 February 2014

Grade 8 Science - Solutions to practice test

Viscosity:
-A fluid’s resistance to flow and movement
-“thickness” of a fluid
-caused by the attraction between the fluid’s particles (strong attraction =
thick, more viscous, like corn syrup / weak attraction = runny, less viscous, like
water)

Hydraulics:
-closed system that uses LIQUIDS to do work
-pressure is applied to the liquid, the force is transferred through the liquid to
do work
-used in things like heavy machinery, especially since it is more efficient than
pneumatics

Pneumatics:
-closed system that uses GASES to do work
-pressure is applied and the force transferred through the gas to do work
-not as efficient as hydraulics because gas particles are farther apart than liquid
particles
-can be found in things like drills, office chairs, etc.

Density:
-the amount of mass in a certain volume of a substance (measured in g/mL)
-“heaviness” of a substance
-caused by how many particles are in a certain volume of a substance, so the
more particles, the denser it is.


1) Explain why solids that flow are not fluids.

- solids that flow are solids that “flow” like fluids.
BUT they:
-don’t take the shape of their container, instead forming piles.
-particles in these solids don’t flow past each other like they do in real fluids (think back to
student demonstration)
-the solids “flow” as pieces of solid, the particles don’t flow

2) Which fluid can be compressed more, liquid or gas. Explain your choice using the particle
theory.

-Gas is more compressible than liquid
-gas particles are farther apart than particles in liquid, so the spaces between gas particles are
larger
-when gas and liquid are compressed, there are more empty spaces for the gas particles to fill
-the liquid particles are already close together so there is little space for them to get closer
together
*remember, liquid particles still have some space (not no space) in between, all particles do…


3) Two items with the same mass are placed in identical water tanks. Item 1 displaces 50mL
of water. Item 2 displaces 65mL of water. Explain why there is a difference in the water
displaced. What can be inferred about the density of the 2 items?

-since the 2 items have the same mass, the difference in displaced water is caused by their
different volumes (space the item takes up)
-since item 1 takes up less space (lower volume, smaller), but weighs the same, it is denser than
item 2
-item 2 needs more space to have the same mass, so it is not as dense as item 1


4) An object is dropped into two types of fluids. In fluid A, the object sinks. In fluid B, the
same object floats. Using proper terms and particle theory, explain what happened.

-the same object is used for both, so the fluids have different densities
-fluid A is less dense than the object because the object has negative buoyancy (sinks) in it. This
means that there are more particles in the same amount of space (volume) of the object than
the fluid A. The buoyancy force of fluid A is not as strong as the forces pushing the object down
-fluid B is more dense than the object because the object has positive buoyancy (floats). This
means the fluid has particles in the same amount of space when compared to the object. The
buoyancy force of fluid B is strong enough to keep the object afloat
-the particles in fluid A are not as close together as the particles in fluid B, so fluid B is denser
and has a higher buoyancy force (since object is the same)

5) How would you use water displacement to find the mass of an object? (The density of the
water is 1g/mL)

-since the water displaced will have the same volume as the object, we can measure the amount of
water displaced by the object to find the mass
-we can take the volume of the displaced water and calculate (multiply the density by volume) or since the density of water is 1g/mL, we can say that the volume will be equal to the mass
*some people also explained step by step how to displace the water, collect, measure and calculate

Saturday, 1 February 2014

Take a Break and remember History!

Some of you crammed into B1 but the balloon would not inflate.

Despite the advertising at the end...this is amazing: https://www.youtube.com/watch?v=dYw4meRWGd4

Be careful, during the violent spin viewers have commented on feeling stomach-sick.

Just awesome.