Tuesday, October 18, 2011

10/18/11

7th Graders: For each of the organs that you drew, write one or more functions for each organ on the     Post-It ® notes that we passed out in class.


6th Graders: Answer the questions on the first 2 pages of the Review Sheet, reproduced below:

Name _________________ Date ______

6th Grade Test Review Sheet:

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. ______________ means: __________________________________________

b. ______________ means: ___________________________________________

c. ______________ means: ___________________________________________


4. What is volume?


5. How do you calculate volume?
a. Write the formula,
b. draw a picture of a rectangular solid
c. showing its length, width and height including appropriate metric units for each
(hint: if you can't do it on your own, here's some help: L = 6 cm, W = 4 cm, H = 2 cm)


d. then apply the formula to find the solid’s volume.

6. A) Explain what mass is:_________________________________________________________ and


B) for the example (solid) that you drew in question 5, make up a mass including an appropriate metric unit.



7. What is density?



8. 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



9. 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 a pebble? ________

b. What does that tell you about the density of the pebble compared to the water?


10. 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?


11. 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 small shavings of nickel (a magnetic metal);

f. Rocks and sand.


12. 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.

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