heads up jan 15 science & math mini experiments

Science 3.4 Mini Lab 2 pg.64-66 

Separating Environmental Mixture of Oil & Water

Purpose: 

In this experiment I will investigate different methods of removing oil from water.

Hypothesis:

If I use cotton balls to soak up the oil, then I think…

If I use a medicine dropper to suck up the oil, then I think…

If I use a straw to move the oil to one corner, then I think…

If I use drops of detergent to the oil, then I think…

Observations:

Treatment	Results
Separating using cotton balls
Separating using medicine dropper
Separating using straw
Separating using detergent

Analysis:

A & B text pg.66

Conclusion:

What did you learn about separating oil from water?

What environmental impact would an oil spill in the ocean have?

How accurate was your hypothesis?

I will bring in all the necessary materials for the above mini lab

6.2 integer experiment: adding positive and negative integers text pg.190-191

Toss #	Result H or T	Point Value H= +1 T= -1	Total Score
1
2
3
4
5
6
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20

Paul’s first 5 tosses were (-1) + (-1) + 1 + 1 + 1 with a total score of 1 since the dotted line on his graph begins at (-1) and ends at +1 after 5 tosses.

My first 5 tosses were ________________________ with a total score of _____ since the dotted line on my graph begins at ____ and ends at ____ after 5 tosses.

After 20 tosses, Paul’s final score is ______.

After 20 tosses, my final score is _______.

Our results are similar because…

Our results are different because…

I noticed that when the value of the toss is +1 the total score…

I noticed that when the value of the toss was -1 the total score…

If I repeated the experiment with 50 coin tosses then I think the greatest possible total score would be…

If I repeated the experiment with 50 coin tosses then I think the least possible total score would be…

reading ebooks on your pc

install adobe digital editions to download ebooks from toronto public library to read on any device (laptop, tablet, smartphone)

http://www.adobe.com/ca/products/digital-editions.html

geography u4 environment cloze activity

U4 Geography Environment pg. 74-78  Big Ideas

The __________ is everything that is on, in, or surrounding the __________.

Everyone takes in __________ and puts out __________ __________ into the air.

The environment is made up of 4 parts: the __________ (air), the __________ (water), the __________ (Earth’s crust), and the __________ (all living things).

The atmosphere allows us to __________; it shields us from the direct rays of the __________; it supplies __________ to the land; it provides __________ the nitrogen/carbon dioxide needed to grow.

The hydrosphere takes up almost __________ of the Earth’s surface; it includes the __________, __________, __________, and the frozen polar ice caps; our oceans supply most of the __________ that falls on land.

The lithosphere is the Earth’s crust or __________ and is up to 50 __________ thick made up of __________ and soils that allow us to grow crops and provides us with natural resources like __________, __________ and __________.

The biosphere is the part of Earth where __________, __________ and people live.

Air is made up of __________, oxygen and __________ __________.

The ozone layer high up in the stratosphere of our atmosphere blocks out much of the harmful __________ (UV) light from the __________ which can cause skin cancer.  

Our ozone protection weakens when we use __________, __________ or refrigerators  because chemicals like chlorine, fluorine and hydrocarbons are released into the atmosphere.

When we burn fossil fuels like __________ and __________ we release carbon dioxide into the atmosphere; this causes higher temperatures and changes to Earth systems – this called the __________ __________.

math: integers 6.1 corrections & hmwrk

https://www.khanacademy.org/math/arithmetic/absolute-value/adding_subtracting_negatives/v/why-subtracting-a-negative-equivalent-to-adding-a-positive

the breadwinner, chapter 1

chador	A piece of cloth worn by women and girls to cover their hair and shoulders. Girls wear this outside.
Taliban	Members of the ruling party in Afghanistan at the time the novel was written.
Dari	One of two main languages spoken in Afghanistan.
Pashtu	One of the two main languages spoken in Afghanistan.
burqa	A long, tent-like garment, which the Taliban have decreed women must wear whenever they go outside. It covers them completely and even has a narrow mesh screen over the eyes.
Soviets	The Soviet Union before its break-up, including Russia and the other Communist countries.
nan	Afghan bread – flat, sometimes long and sometimes round.
toshak	A narrow mattress used in many Afghan homes instead of chairs or beds.

The opening chapter of any novel has a variety of functions including:

·       to interest the reader and make them keep reading

·       to describe a character, a setting, or an event

·       to set the mood or tone for the rest of the book

After reading chapter 1 of the Breadwinner, answer the following questions:

1. What are your first impressions of Parvana and her family?

2. What is your impression of daily life in Afghanistan?

3. What kind of mood/tone has the author set in chp.1?

science 3.2 corrections

3.2 Separating Mechanical Mixtures

Check Your Understanding

1.  Methods of separating the parts of a mechanical mixture include:

1.  Sorting

2.  Floating

3.  Settling

4.  Using a magnet

5.  Using sieves & filters

6.  Dissolving

7.  Evaporation can be used to separate salt from salty water

8.  Chromatography is used to separate the colors out of black ink

9.  Distillation is used to get pure water from sea water

2a. Metals in a scrap yard can be separated by sorting and using a magnet.

2b. Paper clips can be separated from sand using a magnet or a sieve.

2c. Gravel can be separated from water using a sieve.

3.  Examples of mixtures

·        Floating/Settling i.e. skimming fat from boiling chicken to make a broth; cleaning a swimming pool skimming floating insects/leafs; decanting wine from sediments at bottom of wine bottle.

·        Magnet i.e. searching for coins in sand

·        Sieving i.e. straining boiled food (peas, corn, beans, pasta etc)

·        Filtration i.e. purifying water in city treatment plant, making coffee/tea, separating sand from water

·        Dissolving i.e. using sugar, salt, butter, honey in cooking

4.

·        picking veggies off a pizza (sorting)

·        organizing cutlery, laundry (sorting)

Separating mixture of snacking foods in bowl (chips, crackers, preztels, cheese sticks etc)

Sorting would work because of the fairly large, identifiable pieces;

Nothing is really floating to the top or settling at the bottom;

Magnet would not attract anything;

Sieving with a colander, filtering with a small mesh colander wouldn’t work because of the large pieces; nothing would really pass through the holes whether large or fine.