Studying Materials Scientifically (SMS) test will not be held on Thursday, Dec. 19. It has been postponed to shortly after our return from vacation on January 2, 2014. 
Homework:
Pers. 6, 1, 2 - Write at least 3 sentences on how to find the volume of an irregular object. Be sure to include an example.


Per. 5 - Displacement work sheet

Happy early dismissal!
As you know, we have our Studying Materials Scientifically (SMS) test on Thursday, Dec. 19.
Most of you got part 1 of your Review Sheet on Friday, and some got it on Monday.  You got the next part (Volume Study Guide) yesterday and we've gone over it in class today.

(Period 2 Extra Credit - you didn't get it yet, but you can find it posted on yesterday's blog and answer it by Wednesday for Extra Credit)
 Period 1 - Correct Volume Study Guide answer to question 6 is: 6, 1, 5, 3, 2, 4.
Other periods: check out the slide shows at the top of my Links list!!! Good learning tools!
Below is another part of your SMS Study Guide.  Tomorrow, please bring in the written answers to these questions:

1.     If you have two bars of silver colored metal of the same volume, how could you tell which one was iron and which was aluminum? (choose one)

a.    Aluminum will feel heavier

b.    Iron will react in hot sulfuric acid

c.    Iron will feel heavier

d.    Iron will feel lighter

2.    Which of the following is evidence that one substance is chemically reacting with another?  When the substance(s):

a.    Gives off light, smoke, or odor;

b.    Gets hotter or colder;

c.    Gives off bubbles, gas, or a precipitate (causes solids to fall to the bottom);

d.    When the properties of the substances become different.

e.    All of the above.

    

READ THIS: Look at the measurements for this rectangular cube: (shown in text here in case they don't show up on the blog: L = 5 cm, W =3cm, H = 4 cm, mass = 180g.

3.    Will this cube float or sink in water (density of water = 1 g/cm³)? Explain why. (Hint: if you can’t answer it, answer the next 3 questions, then come back to this).

4.    What is the volume of this cube? Remember: V = L x W x H (choose one)

a.    23 cm

b.    60 cm²

c.    60 cm³

d.    180 g

5.    What is the mass of this cube?  (choose one)

a.    23 g

b.    60 g

c.    60 cm³

d.    180 g

6.    What is the density of this cube? Remember: D = m/v  (choose one)

a)    .33 g/cm³

b)    3 g/cm³

c)    180 g/cm³

d)    15 g/cm³

7.    The MSDS (Material Safety Data Sheet) below is for a common ice-melting product.

Material Safety Data Sheet	Potassium chloride MSDS
Physical and Chemical Properties	Color: White flakes or crystals. Physical state and appearance: Solid. Odor: Odorless. Taste: Saline. (Strong.) Solubility: Soluble in cold or hot water. Very slightly soluble in alcohol. pH (1% soln/water):  7 Boiling Point: 1420°C (2588°F) Melting Point: 770°C (1418°F)
Toxicity ( Health)		1	Reactivity: 0 Specific hazard:
Flammability:		0
Health Effects	Potential Acute Health Effects: Slightly hazardous irritant through contact with skin or eyes, ingestion, or  inhalation. Potential Chronic Health Effects: Substance may be toxic to blood, cardiovascular system. Repeated or prolonged exposure can produce organ damage.
First Aid Measures	Eye Contact: In case of contact, flush eyes immediately with plenty of cold water for at least 15 minutes. Get medical attention. Skin Contact: Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops. Inhalation: If inhaled, remove to fresh air. If not breathing or breathing is difficult, give artificial respiration or oxygen. Ingestion: Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention if symptoms appear.
Handling and Storage	Keep container tightly closed. Keep container in a cool, well-ventilated area, away from incompatibles such as oxidizing agents, acids, moisture. Use exhaust ventilation. Personal Protection: Safety glasses, gloves, lab coat. Be sure to use approved/ certified dust respirator or equivalent. Personal Protection if Large Spill: Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid inhalation of the product. Consult specialist BEFORE handling this product.
Waste Disposal:	Waste must be disposed of in accordance with federal, state and local environmental control regulations.  Place in a waterproof container.

8.   8. What does this product look like? _____________________________________________________________

9.    If using chemicals or materials in a science lab, what 3 precautions would you take?

10. What would you do if you got some on your eyes or skin? _________________________

Homework for the evening of 12/16/13 -
SMS Unit test is planned for Thursday Dec. 19.
You should complete 6th Grade SMS Test Review Sheet (pt. 1).
You should also work on the Volume Study Guide if you are in my period 1, 5, or 6 class.  If you don't have the sheet, or if you are in Period 2 class and have already done all of the other work, you can find the work sheet at this link, print it out and turn it in:
http://mrlucas.com/2010%20PDF/Volume%20Study%20Guide.pdf

If school is cancelled tomorrow for snow day, make sure that you have all of this work completed by the start of the next school day.  If you have trouble with one of the problems, you can email me at school and I'll respond. 

• Homework this weekend -  
• This is in preparation for the District Unit Assessment to be given on Thursday Dec. 19, 2013.  
• due on Monday or upon return to school: answer all questions to part 1 of our SMS Test Review Sheet, shown below:
• 
                 1.    Write 2 safety rules in a science lab:
  
  
  
  
  
  2.    What are hazardous materials?
   
  3.    Name and define three types of hazards that we focused on in class:
  a.    __________
  b.     ______________
  c.    ______________
  
  
  4. What is volume?    
  5.    How do you calculate volume? 
  a.    Write the formula for a rectangular solid
  b.    draw  a picture of a rectangular solid
  c.    showing its length, width and height including appropriate metric units for each
  d.    then apply the formula to find the solid’s volume.
  e.    for a cylinder the formula for volume is V = Pi x r² x H
  
  6. Read the Graduated cylinders below:
  
  
  
  7.    A) Explain what mass is:  
  
  
  B) for the example (the solid) that you drew in question 5, make up a mass including an appropriate metric unit.
  
  
  
  
  8.    How would you separate each of the following mixtures into parts?  You have a set of
  tools: strainer or sieve (screen), filter such as a funnel with filter paper, dropper and vial with top, forceps, magnet, heat source like a hot plate or sunlight). Which tools would you would use to separate the following mixtures?
    a.          macaroni from vegetable soup?
   b.        oil and vinegar?
   c.          Water and sand?
   d.          saltwater?
   e.          Little bits of dried sponge and of nickel (a magnetic metal);
   f.         Rocks and sand.
  
  
  9.    What is density?
  
  
  10. You have a solid object (ex: a pebble).  
  a.    If you drop the pebble in a graduated cylinder filled with water, what will
         happen to the pebble?______________________________________________
  
  
  b.    What does that tell you about the density of the pebble compared to the water?
  
  
  
  
  11. If you have 2 liquids in a bottle (ex: oil and vinegar), what will the less dense liquid do: float or sink in the other liquid?
  
  
  
  
  12.   What are properties?
  
  
  
  
  13.  Why are properties important in science?
  .
  
  
  14.  What are physical properties?  Give at least 3 different examples of physical properties.
  
  
  
  
  
  
  15.  What are chemical properties?  Give at least 2 different examples of chemical properties.
  
  
  
  
  
  
  16.  Acids and bases are corrosive chemicals that can react with and destroy metal and living tissue.  On a scale that runs from 0-14, pH is a measurement of how acidic (0-6 ) or basic (8-14 ) a solution is.   A solution that has a pH of 7 is neutral, meaning it is neither acidic nor basic.  Stronger acids have the lowest numbers, and stronger bases have the highest numbers.  What does the pH of a solution with pH 3 tell us?   The solution is ……
  
  
  
  
  17. How do you calculate density of a regular solid?  Use your examples from questions 5 and 6 to calculate the density of the solid that you described
  
  
  
  
  18. What is evidence?
  
  
  
  
  19. What are some hazardous substances that you can find in your home?
  
  
  20. If you found an unlabeled jar containing something that might be hazardous, what would you do?  
  
  
  21. How would you dispose of it?
  
  
  22.   What are some precautions you can take when you find an unknown substance in your home?