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Homework Hotline--Fifth Grade Team



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Science

	
              Mr. Murduck’s    Homework/Practice    9/15 – 9/19

Monday – Science –Last week we discussed how the volume of the Great Lakes 
was not only determined by the size of the lake, but also by the depth. This 
makes sense because when we have two containers of equal diameter, the deeper 
one will hold more liquid. Today we will begin by first discussing metric 
measurement using graduated cylinders to measure the volume of  a liquid. In 
order to measure the volume properly you must learn how to look at the 
meniscus of the container you are using.  Make sure to pay attention in 
class! Then to measure the volume of a solid we can drop an object into a 
known amount of liquid and record how much liquid moves up or is displaced. 
Companies need to know how much volume a container has.  But they also need 
to know how much room the objects take up that go in the container.  Example: 
A jar of pickles.  Tomorrow you will be using graduated cylinders to measure 
the volume of solid objects.     Homework - Grade printouts were sent home 
today!  These need to be signed and returned to me by Friday of every week!  
A small grade will be assigned to this task!  These are used by me as a 
communication tool home.  Parents are encouraged to make notes to me if they 
would like a telephone call regarding a question relating to student grades 
or other issues.  If a student fails to get grade printouts signed 2 weeks in 
a row, in most cases I will make a telephone call home. Journal #6  - Reflect 
on today’s discussion where I explained how to measure the volume of a liquid 
or object using a graduated cylinder. (A) How do scientists make sure that 
the data they collect and their measurements are accurate? (B) List the steps 
that you are going to take as you determine the volume of different objects 
during tomorrow’s lab.  Optional – (C)  Explain why we can only measure the 
volume of objects that are heavier or denser than water.  

Tuesday – Science -  We will discuss last night’s homework while quickly 
reviewing for today’s lab. Today we will measure the metric volume of solid 
objects using the graduated cylinder.  Each student will be responsible for 
collecting data.  Homework – Find 6 items at home that are measured by their 
metric mass in grams (g), milligrams (mg), or kilograms (kg).  List the item 
and then write the metric mass of the item.  Make sure not to use pounds or 
ounces!  Look for items like cereal, rice, sugar, etc.  Remember to get you 
grade printouts signed and returned to me by Friday!

Wednesday – Science – Today we will discuss yesterday’s lab. We will look at 
last night's homework relating to the measurement of mass.  Mass if different 
than weight and is determined by the amount of matter that makes up an 
object.  Weight is determined by the gravitational pull being exerted on an 
object.  Mass is also determined by how compact the molecules of matter are.  
This is called the density.  Objects with molecules more compact than water 
are denser than water and sink. I will introduce everyone to the triple-beam 
balance and the electronic balance which measure the mass of objects. Some 
round objects have to be placed in another object to record their mass. The 
mass of the object they are placed in is subtracted from the total mass.   
Homework – Journal #7 – You learned about the 3 states of matter in 
elementary school.  These are solids, liquids, and gases.  (A) Considering 
how compact the molecules are in each state of matter , why would solids tend 
to be heavier than liquids?  (B)  Why would liquids tend to be heavier than 
gases? Optional - (C)   Given what we have discussed about the mass of 
solids, liquids, and gases, explain what happens to allow a hot air balloon 
to get it off of the ground. Swine Creek permission slips are due tomorrow!

Thursday – Science – Today we will discuss last night’s homework and 
yesterday’s demonstration on how to use a triple-beam balance.  Today we will 
measure the mass/weight of objects on the triple-beam balance.  We will then 
compare our data from the triple-beam balance to what we record using an 
electronic balance.  Each student will be responsible for collecting data.  
Homework – Grade printouts are due signed and returned by tomorrow!  Read the 
handout on density and be prepared to discuss it tomorrow in class.  Note:  
Reading assignments can always be followed with a pop quiz!

Friday – Science – Today we will discuss last night’s handout on density.  We 
will watch a short video on states of matter and density. Homework – Have a 
safe and fun weekend!








                 

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Last Modified: Friday, September 12, 2014
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