BELL-RINGERS

Thursday 3/14/19
1)  Define the law of conservation of mass.
2)  Copy the following chemical equation.  Then label the side of the equation that represents the reactants and the side that represents the products.
Y(NO3)2  +  GaPO4 —->  YPO4  +  Ga(NO3)2

 

Wednesday 3/6/19
1)  Write the charge for the following ions.  Sr, Bi, At, Xe, Cs
2)  Write the formula and name for the ionic bond between Ca and Br.

4th Nine-weeks begins here __________________________________________

 

Wednesday 2/27/19
1)  Draw the electron dot diagram for U.
2)  What is the density of water?
3)  Count the atoms in the following formulas:
Mg(C2H3O2)2
(NH4)2SO4

 

Tuesday 2/26/19
1)  Draw the electron dot diagram for Fe.
2)  Draw the electron dot diagram for As and Br.
3)  Is Cl2 a compound or a molecule? Why?

 

Wednesday 2/13/19
1)  Draw the atomic model for the most common isotope of potassium.
2)  What period is potassium on?
3)  How many valence electrons does potassium have?
4)  What group number is potassium part of?

 

Tuesday 2/12/19
1)  Draw the atomic model for the most common isotope of sulfur.
2)  What period is sulfur on?
3)  How many valence electrons does sulfur have?
4)  What group number is sulfur part of?

 

Thursday 2/7/19
1)  How many valence electrons does nitrogen have?
2)  What period can the element Kr be found?

 

Friday 1/25/19
(graded separately so not part of the official bell-ringers)
Dry Ice Lab

 

Tuesday 1/22/19
(copy the question)
1)  What is temperature?
2)  How can temperature affect the density of an object?
3)  What are the three temperature scales?
4)  What is the coldest that anything can get?

 

Friday 1/18/19
1)  WHY is the basement of a house almost always the coldest level in a house no matter what time of year?
2)  WHY is the top floor of a house almost always the hottest level in a house no matter what time of year?
3)  What IS and WHEN will the super blood wolf moon occur?

 

Friday 1/11/19
(graded separately so not part of the official bell-ringers)
Density lab data tables should be copied into your composition book.

 

Thursday 1/10/19
Define:
1)  mass
2)  volume
3)  density

 

Monday 1/7/19
(graded separately so not part of the official bell-ringers)
Label “Rainbow Lab” on a clean page in your composition book.  Put your group # beside the title.

 

Friday 1/4/19
(copy the question)
1)  What is a physical property?
2)  What is a chemical property?
3)  What is the difference between a physical change and a chemical change?

 

Thursday 1/3/19
Define:
1)  chemistry
2)  matter
– List at least ten things inside the classroom that are matter.
– Why is it important to follow lab safety rules?

 

3rd nine-weeks begins here ______________________________________________________________

 

Monday 11/26/18
(use the big book glossary in classroom)
Define:
1)  wave
2)  medium
3)  frequency
4)  hertz
5)  transverse wave
6)  crest
7)  trough
8)  amplitude
9)  wavelength
10)  longitudinal wave
11)  surface wave

 

Tuesday 10/30/18
Read “Drawing Electrical Diagrams” on pages 19 & 20 fo the thin “STC” book that is in your desk.  Then, on an entire page in your composition book, draw and label all 18 electrical symbols in the chart on page 19.

 

Monday 10/29/18
Come up with at least five questions the movie “Are We Alone?” makes you wonder about.

 

Tuesday 10/23/18
Write “Energy Transfer Lab” beside today’s date.  Write the following question below the lab title:
Which type of ball (tennis ball, ping-pong ball, rubber ball, or golf ball) retains the greatest percentage of its kinetic energy on each bounce?
Below that write your hypothesis for that question.

 

Monday 10/22/18
Write down at least five questions the videos “Elements of Physics:  Energy: Work and Power” and “The Physics of Motion” makes you wonder about.  (tell why absent if that is the case)

 

Thursday 10/11/18
At the top of the next clean page, write “2nd 9-Weeks”.  Underneath that heading write “Card Sort Lab”.  Write your group # beside the date.

 

______________________________________________________________ Second 9-Weeks begins here

 

Thursday 9/27/18
1)  Define friction.
2)  Are resistance is a type of ______________.
3)  What is the law of universal gravitation?
4)  When the only force acting on a falling object is gravity, the object is said to be in ________.

 

Wednesday 9/26/18
(Copy the questions and answer them.)

1)  Newton’s ____ law of motion states that an object at rest will remain at rest, and an object in motion will remain in motion in a straight line and at a constant speed unless an outside force acts on it.
2)  Newton’s ____ law of motion states that for every force applied in one direction there is an equal force applied back in the opposite direction.
3)  Newton’s ____ law of motion states that force equals mass times acceleration.
4)  How/why is a rocket able to launch into space?   Also, which law of motion best explains this?

 

Monday 9/24/18
1)  What “special” thing happened Saturday night?
2)  What special name did that day have?
3)  What imaginary line on the earth was the sun directly above on that day?
4)  How many hours of daylight and darkness were there worldwide on that day?

 

Friday 9/21/18
Define:
1)  force
2)  centripetal force
3)  net force
4)  balanced force
5)  unbalanced force
6)  inertia

 

Thursday 9/20/18
Come up with at least five questions the movie “Black Holes” makes you wonder about.  See what happens when gravity “goes mad”.  If absent during the movie, write a note to that effect in your composition book for today’s date.

 

Thursday 9/6/18
Bowling ball lab with GRAPH.

 

Wednesday 8/29/18
1)  Define motion.
2)  Define speed.
3)  What is the mathematical equation to calculate speed?
4)  Describe the motion(s) of your desk right now.

 

Monday 8/27/18
During the movie “Cosmic Voyage”, come up with at least five questions the movie makes you wonder about.

 

Tuesday 8/21/18
Using the pages given to use in class, write down your most accurate measurement for where the arrow is pointing in the 12 pictures.  Remember, the last number you write down for a measurement should be the first number the instrument forces you to estimate.  (#13 is the water’s volume inside the graduated cylinder)

 

Monday 8/20/18
Read the following scenario.  Copy only the question at the bottom and then answer that question.

Katie wants to find out how light affects the rate of mold growth. She places a pear slice with one teaspoon of water in a sealed plastic bag. She does the same thing with an orange and an apple. Each item is placed on a table. The apple is placed under a box, the orange is placed under a semi-transparent (translucent) cloth, and the pear is left uncovered.

What variable did Katie fail to control as she set up her experiment?

 

Tuesday 8/14/18
Write down any question(s) you may have about the science safety rules.  You must come up with at least one question about the safety rules that you are still not certain about.

 

Monday 8/13/18
Print “1st 9-weeks” at the top of the first page in your composition book.  Put the date in the left-hand margin.  Then using your pinky finger only, measure the width of the top of your desk and record it.
Also define:
1)  qualitative observation
2) quantitative observation

 

Tuesday 8/7/18

You will check here for bell-ringers that are completed in class.  All bell-ringers will be completed in your science composition book.  You are responsible for completing ALL bell-ringers, except for movie questions or some labs, even on days that you are absent from school.  The bell-ringers will be graded near the end of the nine-weeks grading period.  Each day is worth 5 points each.

You should attempt each bell-ringer in pencil or ink (black or blue ink ONLY).  If you make a mistake in your answer, you should correct the answer in RED or GREEN ink when we go over the answer in class.  Failure to do any of this will result in a loss of some points.  Leaving off the date will result in a one point loss.  IT IS OK TO MAKE A MISTAKE ON THE BELL-RINGER.  IT IS NOT OK TO CHOOSE TO NOT DO THE BELL-RINGER.

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