Physical Science 8/28 Bell Work Using the metric ladder, convert the following measurements: 104 m → cm 45.7 hg → g 13 cL → L 0.567 dm → km Agenda Measuring Length and Regular Volume. Measuring liquid volume. Learning Target I can estimate and measure length, regular and liquid volume using the metric system. Homework & Important Dates Metric Mania Due Tomorrow Book Notes and Vocab Due 8/31

Linear Measurement meter decimeters centimeters millimeters 1 ______________(m) = 10 ______________(dm) OR 100 _______________ (cm) 1,000 _______________(mm). ** 1 ___ is the distance between each tiny black mark on a ruler. decimeters centimeters millimeters mm

Comparisons: 1 m – 1 cm – 1 mm – ~ a desk a basketball net is approximately 3 meters 1 cm – the width of a finger nail 1 mm – the thickness a dime

Regular Volume To determine regular volume, we make linear measurements and then use mathematical formulas. Volume = Length x Width x Height = cm x cm x cm = _______________ or cm³ Always convert all measurements to the same unit and prefix before substituting into a formula. cubic centimeters

Comparisons: 1mm³ - 1 cm³- 1m³- 1km³- Grain of sand Dice 8 standard boxes 1km³- ~Folsom Lake 264 billion gallons of water

Volume liters milliliters meniscus Liquid volume is measured in _______________ (L) or _______________ (mL). The surface is curved and forms a _______________. The cylinder must be placed on a flat surface and the lower edge of the meniscus must be observed at eye level. milliliters meniscus

Comparisons: 5mL = one teaspoon 2.11337642 US cups ~ 2 x 16 fl oz water bottles 2L = large bottle of soda

Measurement Data Procedure Each work station will collect their lab supplies from the front counter. Check for all supplies – wood block, ruler, white & orange marble, rock, graduated cylinder , three empty containers, bottle of water. Complete ALL estimates first! Length and Regular Volume - use the ruler to complete. Formulas are in your agenda on page 120. Liquid Volume – Fill one of the containers full to the very top with water from your bottle. Pour into graduated cylinder and measure volume. Return water to the bottle and repeat for remaining containers.

Physical Science 8/29 Bell work Imagine you had a rock. How could you find the volume of it? Assume it is not a perfect shape. Agenda Irregular Volume and Mass Measurements Learning Targets I can estimate and measure liquid and irregular volume using the metric system. I can use the triple beam balance to find the mass of an object. Homework & Important Dates Book Notes and Vocab Due 8/31 Measurement Data due 9/1 Unit 1 Test – 9/7

Irregular Volume & Water Displacement: Pour water in to a cylinder large enough to hold the object. Measure the volume of water in the cylinder. Add the object to the water and submerge (eliminating all air). Record the volume of the water + object. Subtract the original volume of water to find the volume of the object.

1 ____________ (cm³) = 1 ___________ (mL) _______________ (mL)= 1 ___________ (L) OR 1 _______________ (dm³) 1000 ___________ (L)= 1 ___________ (m³) cubic centimeter milliliter milliliters liter cubic decimeters liters cubic meters

Mass What is the difference between mass and weight? Mass is different to weight because mass is the amount of matter in an object and weight is the force of gravity on an object.

Set the balance to zero using the adjustment screw. Place the item on the balance. Starting with the top beam, slide the rider until the farthest it will move to the right before the balance tips. Repeat for each rider until balanced. Add the quantities measured by each rider to calculate the total mass.

300 70 3.3 373.3 3.3 300 70

7 grams Rolling objects may be measured using a dish and following the same method as above

Comparisons: 1g – ~ 1 paper clip 10g – 0.5kg – ~ 2 teaspoons of sugar ~ 4.5 sticks of butter ~ 2 lbs (large peanut butter)

Measurement Data Procedure Each work station will collect their lab supplies from the front counter. Check for all supplies – wood block, ruler, marble, rock, petri dish, 3 beakers - containing water, oil and syrup. The empty beaker has been massed as a group. Complete ALL estimates first! Remember that if the object is massed with a container, you must subtract the mass of the container.

8/30 Bell work What is mass? Agenda Density Learning Target Physical Science 8/30 Bell work What is mass? What units do we use for mass? Is mass different from weight? Why or why not? Agenda Density Learning Target I can calculate the density of a substance and determine whether it will sink or float. Homework & Important Dates Book Notes and Vocab Due 8/31 Measurement Data due 9/1 Unit 1 Test – 9/7

Density What is density? How is density calculated? What is the SI unit for density? What is the density of pure water? Density is the amount of mass in a given volume. To calculate density you divide mass by volume. Density = mass/volume We measure density in g/cm3 or kg/m3. The density of pure water is 1g/cm3.

Density Is salt water more or less dense than pure water? Which is least dense? Solid, liquid or a gas? Which is most dense? Solid, liquid or a gas? Which is less dense? Aluminum or iron? Which is more dense? Balsa wood (used in model building) or oak? Salt water is more dense – the Dead Sea is so dense you cannot sink. A gas is least dense. Ex. Helium balloons float. A solid is more dense than it’s liquid equivalent. Ice water is an exception As the H2O expands when it freezes. Aluminum is less dense. Oak is more dense.

Complete pre-lab for Messy Jar (stop when you reach analysis).

Physical Science 8/31 Bell work How can density be used to determine whether or not an object can float? How do you think this information would be useful if you were combining substances that could not mix? Agenda Quiz Review Messy Jar Lab Learning Target I can calculate the density of an object given the mass and volume and use this information to determine if it will sink or float. Homework & Important Dates Measurement Data due 9/1 Unit 1 Test – 9/7

Messy Jar Lab As we place all substances in the jar: Observe and record what happens to the substances after they have settled. Analysis: Draw and label a diagram of your observations. Complete lab!

Make a Claim! Claim Reasoning Held up by Evidence! In your groups, develop your claim of what happens to all of the objects when placed in the jar! Write your claim on a separate piece of paper provided! Draw a picture to illustrate your claim!

9/2 Bell work What are the units for mass, volume, and length? Physical Science 9/2 Bell work What are the units for mass, volume, and length? What devices do we use to measure these three measurements? Does mass affect volume? Why or why not? Agenda Quiz Friday Assignments Bell Work / Vocabulary Book Notes 1.3 Metric Mania Measuring Data Homework & Important Dates Unit 1 Test – 9/7 Messy Jar Lab due Thursday 9/7

Extra Credit Posted on website – print and complete You may write notes on a single flash card to use on the test. Your name must be on your card Handwritten –both sides Typed – 12 point font minimum on one side only Name must be embedded in the middle of the flash card We will have a review day on Tuesday!

Vocab Due Thurs 9/1 Weight Mass Volume Meniscus Density – definition and formula Balance Graduated cylinder Volume of a rectangular prism - formula Volume of a cylinder - formula Volume of a sphere - formula Test – Sept. 7th One flash card of notes -handwritten on both sides with name -typed on one side only in no smaller than 12 pt point with name in center