Get out your science Fair
Journal and turn to page
11
Do the Warm-up Expectations
Complete the Warm-up by Yourself
Always Write in Complete Sentences, Don’t use the Word “IT”
Page 40 of the Blue Science Book
1.What is a compound?
2.What is a chemical formula?
3.What is the chemical formula for
sugar?
4.What elements are in
sugar?
You have 5 minutes.
•Halloween Candy in the classroom (trash).
•Halloween Candy – Bring some in for others.
•Grade Sheet #3 – Tutoring today
•Trebuchet Experiment – Research. After
school. M-20 @ 4:15
•Homework
•Firebird Friday this week
3 Sections of Research
•Research
•Pictures
•Vocabulary
•Next 2 weeks of homework.
•Fill in pages 9–23 of the Science
Fair Journal.
•Look in books, magazines and the
world wide web.
•Pages 9-23 will be due Nov. 8th.
•Hypothesis due Nov. 8th.
Open Your Science Logs
to the page that says
100% on the Safety Test.
Tool: Dual Pan Balance
Parts:Pans, riders, beams, adjustment
knob, base, pointer
Measuring: The unit of measurement is
grams. A gram is a very small measurement.
People usually use kilograms (1000 grams).
Block of wood - ______ grams
_______’s science log –
________’s agenda –
________’s pencil –
Test Tube Corked Ball –
Rock –
Tape Measure –
Stopper –
Marble –
Page 46 in the Blue Science Book
Tools: Tape Measure or Graduated Cylinder
Measuring:
•The unit of measurement is cubic centimeters.
•Cubic Centimeter is written cm3.
•A cm3 is a very small measurement, about
the size of a drop of water.
Tools: Tape Measure or Graduated Cylinder
Measuring:
•The unit of measurement is cubic centimeters.
•Cubic Centimeter is written cm3.
•A cm3 is a very small measurement, about
the size of a drop of water.
2 ways of measuring volume:
Length X Width X Height – tool?
Measure in centimeters
Get a tape measure and a block of wood.
Write the wood’s length & width & height
Tools: Tape Measure or Graduated Cylinder
Measuring:
•The unit of measurement is cubic centimeters.
•Cubic Centimeter is written cm3.
•A cm3 is a very small measurement, about
the size of a drop of water.
2 ways of measuring volume:
Length X Width X Height – Tape Measure
Measure in centimeters (cm)
9cm X 9cm X 3.5cm = ____ cm3
The Block of wood’s volume is ___
2 ways of measuring volume:
Length X Width X Height – tool?
Measure in centimeters
9cm X 9cm X 3.5cm =
The Block of wood’s volume is 283.5cm3
Water Displacement – tool?
How much does the water rise?
Graduated cylinders measure milliters(ml)
1ml of water = 1cm3, so…..
35ml=35cm3 & 158ml=158cm3 & 3145ml=3145cm3
PRACTICE – Water Displacement
PRACTICE – Water Displacement
Person closest to the American Flag the
beaker with 150 ml of water
Follow my directions.
PRACTICE – Water Displacement
Write the volume of the following items.
Rock Marble –
Stopper –
Crayon –
Marker –
Candle Test tube upside down –
Test tube right side up –
Someone’s pencil -
1. Which item has the most mass?
2. Which item has the largest volume?
3. What are the 2 ways to measure volume?
4. Which tool is used to measure mass?
5. What unit of measurement is used to
measure volume?
6. Explain how you would measure something
larger than a graduated cylinder, like the
cork ball.
Tools: Math, Calculator
Measuring: How much matter is inside of
something.Density affects float or sink.
Measuring density:
Mass(g)
or
or
÷ Volume(cm )= Density(g/cm )
3
Density(g/cm3)
Volume(cm3) Mass(g)
/
Mass(g) Volume(cm3)=Density(g/cm3)
3
Tools: Volume, Mass, Math, Calculator,
Measuring: How much matter is inside of
something.Density affects float or sink.
Measuring density:
Mass(g) ÷ Volume(cm3)= Density (g/cm3)
Example: Mass=3.75g, Volume=5cm3.
3.75g ÷ 5cm3 = .75g/cm3
You need to know the mass and the
volume to calculate density.
PRACTICE -
Object
Block of Wood
Washer
Rock
Test tube right side up
Test tube upside down
Marble
Stopper
Mass
Volume
Density
Not all objects can fit into a graduated cylinder
Supplies:
Towel,Tape and Calculator
2-Liter bottle with top cut off, filled ½ way
with water.
Large Beaker with exactly 600ml of water
Dual Pan Balance with a 200g mass
1. What is the volume of a book with the following dimensions?
Length = 12 cm, Width = 3 cm and Height = 20 cm
2. What is the density of the book if its mass is 175 grams.
3. What is the volume of a steel bar with the following dimensions?
Length = 5 cm, Width = 2 cm
Height = 30 cm
4. What is the density of a steel bar if its mass is 2.5 kg?
(Hint: convert to grams first.)
5. A cork ball has a volume of 5.0 cm3 and a mass of 120 grams.
What is the density of the ball?
6. Water has a density of 1 g/cm3. If you placed the cork ball and the
steel bar in water, what would happen to each?
7. Explain your answer to question #6 using your knowledge of
density.