Thursday, February 23, 2017

Homework tonight (all classes) - 
Please Write:
  1.   5 S.T.A.R.-note Questions AND 
  2.   Reflection.  Write at least 2 sentences about what you learned in lab
Instructions on How to Write a Reflection. We are I.B. students.  So, a well-written Reflection should: 
  • be thoughtful;
  • consider what you learned and experienced in our science class;
  • assess (or find) your strengths and limitations and how they affected what you did in class;
  • say how you could improve, or what you could do better, next time. 
  • be written on the left side page of your science notebook (see diagram below showing "Left page"); 
  • have the title: "Reflection" and the date written on it so I can identify it; 
  • Not be copied from someone else's Reflection;
        AND
  • start with a CAPITAL LETTER and end with punctuation (. ! or ?).
  • Example: REFLECTION 2/23/17  In this lab, I found that some properties were common, such as "opaque", while some other properties were rare, such as "reacts with Hydrochloric Acid".  A few properties were often paired, such as "conductive" with "flexible".  This helped me to group some materials into the same category.  I found out that I was not as good at recording data as my teammates, so had to hurry at the end to fill out my data table. So, I was not able to see some of the testing. In future labs, I'll be sure to write out my data right away.Image result for reflection on left side of interactive notebook↓↓
 
 
  •  

Wednesday, February 22, 2017

Welcome back from vacation.  
Homework: Chemistry: An Introduction to Chemistry. Read 3 paragraphs and answer questions.
Make up tests for those who missed Unit tests on 2/10/17 for medical reasons will be given on Friday during regular class times.
Sorry about the late entry.

Tuesday, February 14, 2017

Homework: 
Period 1 - Write 5 STAR note questions and finish copying vocab definitions into your science notebook. 

Period 2, 3, 4, 6,7 -  Worksheet 1-2 What are Properties of Matter?     Read and answer questions.

Thursday, February 9, 2017



Try Kahoot. Go to Kahoot.it. Set up your own account, it's free.  Then, search for Kahoot called Studying Materials Scientifically, by Sepupstudent.

Studying materials scientifically

Check back later if you want to see Kahoot for tomorrow's test. Now, I'm going to add answers to Review Sheet, Part 2.

Hey folks, Mr Goldsmith here.  Going to start answering those study guide questions.  Check back every few minutes for more answers.


6th Grade SMS Test Review Sheet:
1.     Write 2 safety rules in a science lab:
·       Wear goggles, scrunchie, gloves and/or apron
·       No horseplay (no running, throwing, dropping), etc.)

2.     What are hazardous materials?
·      substances that are harmful to human health or the environment

3. Name and define three types of hazards that we focused on in class:    

Corrosive – property of a substance that reacts with a solid material. Ex: sulfuric and other acids corrode metals like iron.
Flammable - a substance that catches on fire when exposed to spark, flame or heat.
Toxic - Poisonous if inhaled, ingested or absorbed through skin. "Ingested" means swallowed.

   
4. What is volume?

How much space an object takes up

5. How do you calculate volume?  (Answer for each subpart)

a.     Write the formula for a rectangular solid   V = L x W x H

b.     draw a picture of a rectangular solid 
Here, draw a rectangle (I can't get it to work on the blog, but you know what a rectangle looks like)

c.     show its length, width and height including appropriate metric units for each 
...... and write a number next to each side, such as 6cm long, 4 cm high and 2 cm wide - just make up whole numbers. Metric units would be cm, m, mm.

d.     then apply the formula to find the solid’s volume
For example, a rectangle that is 6cm long, 4 cm high and 2 cm wide - has  Volume of 48 cm3, since V = L x W x H, or 6cm X 4 cm X 2 cm = 48 cm3.
e.  for a cylinder the formula for volume is V = Pi x r2 x H 


6. a. 15mL


b. 37 mL 


c. 41 mL       


d.22 mL

Corrosive – property of a substance that reacts with a solid material. Ex: sulfuric and other acids corrode metals like iron
Flammable - a substance that catches on fire when exposed to spark, flame or heat.
Toxic - Poisonous if inhaled, ingested or absorbed through skin. "Ingested" means swallowed.
 
,

    
7.     A) Explain what mass is:  
Mass is the amount of matter in an object,usually measured in grams.
B) for the example (the solid) that you drew in question 5, make up a mass including an appropriate metric unit.
Use a multiple. Ex: if your solid has V= 10cm3, choose mass of 100g

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? 
             Use a filter/strainer and forceps
b.          oil and vinegar?
            Use a dropper and vial
c.            Water and sand?
        Use a screen, sieve, or other filter.  Use sunlight?
d.            saltwater?
Use a heat source
e.            Little bits of dried sponge and of nickel (a magnetic metal);
Use a magnet
f.           Rocks and sand.
Use a forceps or strainer
9.     What is density?
     how much matter is in a certain volume (how much “stuff” is in a “space”)
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?__ sink_____________

b.     What does that tell you about the density of the pebble compared to the water?  pebble is more relatively dense than 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?
                  float

12.   What are properties? 
The nature of a material, Properties are how we determine what material we are looking at, and how we use that material. A substance's characteristics that help us describe it, classify it, understand it, and use it.

13.  Why are properties important in science?
They allow us to determine (describe, classify and use) substances/objects

14. What are physical properties?  Give at least 3 different examples of physical properties.
A characteristic that you can observe without changing the substance.  ex: color, shape, mass, volume, density

15.  What are chemical properties?  Give at least 2 different examples of chemical properties.
A characteristic that you can observe only by changing the substance.  ex: react chemically with acid or base, does it burn, does it corrode?

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 ……
A strong acid

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
D = m/v

18. What is evidence?
 data or information that can be used to prove an answer

19. What are some hazardous substances that you can find in your home?
 Windex, bleach, natural gas or cooking gas, nail polish remover, insecticides, drain cleaner, etc.
20. If you found an unlabeled jar containing something that might be hazardous, what would you do?  
tell a parent; don’t touch or smell it

,21. How would you dispose of it?
may have to take it to haz mat waste site
22.   What are some precautions you can take when you find an unknown substance in your home?
                               Tell an adult about it; don’t touch or smell it

6th Grade SMS Test Review Sheet, pt. 2


23. Summary of Table: 
* Plastic (P.E.T.E.) is a solid at 20oC or 68 oF has a density of 1.4 g/ cm3F, does not react with acid, and looks shiny and red.
* Iron is also solid with a density of 7.87 g/cm3, reacts with sulfuric acid and has a silver or red (rust) color.
* Aluminum is also solid with a density of 2.7 g/cm3, reacts with heated sulfuric acid and has a silver color that is coated with white.
24.     IF given a cylinder of each material, which tests could you use to tell the difference between each material?
a.     Place in oil
b.     Smelling the substance
c.     Drop the materials in sulfuric acid
d.     Drop it on the floor and Listen to sound

25.      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?
a.     Aluminum will feel heavier
b.     will react in hot sulfuric acid
c.     Iron will feel heavier
d.     Iron will feel lighter

26.     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.




I can't show the picture here without messing up this blog post even more, but for this rectangular cube:

27.     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).
The cube's density of 3 g/cm3 is greater than water's density of 1 g/m3, so the the cube will sink. 




28.     What is the volume of this cube?
a.     23 cm
b.     60 cm2
c.     60 cm3
d.     180 g

3.     What is the mass of this cube?
a.     23 g
b.     60 g
c.     60 cm3
d.     180 g

4.     What is the density of this cube?
a)    .3 g/cm3
b)    3 g/cm3
c)     180 g/cm3
d)    15 g/cm3


5.     Explain and write a procedure for how you would find the density of a weirdly-shaped rock:
1.     Pour 25 mL of water in a graduated cylinder that the rock will fit into, and record as initial volume (Vi).

2.     Add the rock.
3.     Measure and record the final volume (Vf).
4.     Find the volume of the rock by calculating Vi -Vf.       


 

Wednesday, February 8, 2017

SPS has officially announced No School on Thursday, 2/9/17. 

SMS Unit test will still be given on Friday 2/10.

Check here tomorrow for answers on Review Guides and correct your work at home.  I also hope to post a Quizlet or Kahoot that you can use at home later tomorrow.  Try it out and let me know if you like using it.

Tuesday, February 7, 2017

Homework: Answer remaining questions on the 6th Grade SMS Test Review Sheet

SMS Unit test is Friday, Feb. 10, 2017. Here's a better view of the picture for Question 7:



Check out two relevant links (Properties of  Matter and Volume and Displacement) to the right ---->

Outline from my front board: 

SMS Unit Test: Fri., Feb. 10
What we learned so far: 
 1. Hazardous Materials
-Symbols, handling (or not) types: 
     a. Toxic (be able to define)
     b. Flammable (be able to define)
     c. Corrosive  (be able to define)
2. States of Matter: Liquid, Solid, Gas - (be able to define these)
3.  Data can be
     Quantitative (with numbers), or
     Qualitative (withOUT numbers)
4. Mixtures
 -physically combined (same place & time)
 - can be physically separated, using: 
    * Tools (strainer, forceps, dropper, etc.), and 
    * Physical Properties (ex: State of Matter, texture, hardness, appearance, density, etc.).
5. D= m where mass is the amount of matter in an object, and 
         v            volume is the amount of space an object takes up