Density D= Mass_ Volume Mass: put matter on balance Volume:

Slides:

Advertisements

Similar presentations

Earth Materials and Processes Benchmark Describe and compare objects in terms of mass, volume and density.

Advertisements

Density Density is a _________ property of matter.

What Is Density? (contd.)

DENSITY OF COLA AND DIET COLA

MEASURMENT, PERCENT ERROR, AND ACCURACY VS. PRECISION.

To find the density 1- Find the mass of the object 2- Find the volume of the object 3- Divide Density = Mass Volume.

Flashback Convert 2.58 m to kilometers. Accuracy and Precision Accuracy- the closeness of measurements to the correct value of the quantity measured.

Scientific Measurement SWBAT: Use scientific notation to show large & small numbers Describe the difference in Accuracy and Precision.

Density All substances have different densities, therefore, you can identify a substance if you know its density The formula to calculate something’s density.

How do you calculate the density of a substance?

Density A Physical Property of Matter. What is Density? Density is the amount of mass in a given volume. Density is the amount of mass in a given volume.

Density Density describes how heavy an object is compared to its size.

Math and Measurement. Significant Figures Significant Zeros 1.Leading zeros are never significant 2.Trailing zeros only count if there’s a decimal point.

Density. Different substances have different densities. The density of a material does not depend on the size or amount of the substance you have. Density.

“The Density Equation” Mass (g) Volume (mL or cm 3 ) Density (g/mL or g/cm 3 )

Density Mass per unit volume. Density  Density is the amount of matter in an object divided by the volume  D=M/V If each box has the same volume and.

Scientific Measurement Ch. 3. Scientific Notation 3-1.

Daily Science (Aug) 1. Convert 3.56 m into dm 2. Convert 113 lbs into g (438 g in 1 pound) 1. Convert 1.65 km into inches (1 in = 2.54 cm)

1 Accuracy and Precision Notes Chemistry 1. 2 Uncertainty in Measurements There is no such thing as a perfect measurement! All measurements have a degree.

How to calculate Density 6 th Grade. Let’s first look at the formula Remember that d is for density, m is for mass and v is for volume.

Starter Your friend gives you a solid object that is a rectangular solid. Explain how you could determine the density of the material. Your friend gives.

Unit 2 Unit 2 Percent Error We know that measurements can be described in terms of precision (how close a group of measurements are to each other) and.

Accuracy and Precision. Remember these definitions? ► Accuracy – a description of how close a measurement is to the true value of the quantity measured.

I-Precision: Refers to how close a series of

Chapter 1 – Section 2 p Measuring Matter. I. Weight – a measure of the force of gravity A. Changes if you go to the moon or another planet since.

What is Density?. Density is… The ratio of the MASS of a substance to it’s VOLUME.

Density and % error. Density Density – Compares mass (amount of matter) of object to its volume (amount of space occupied) mass per unit volume (g/cm.

Density D = M / V What is Density? Density – the amount of matter (mass) in an object per unit of volume In other words: How much stuff is packed.

20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt Those.

What is the formula? How can density be used to identify materials?

LAB: Calculate the Density of Water Mass _____ = DENSITY Volume What is the formula for Density?

DOR: Conversions II 1) 100 FT/SEC TO CM/HOUR 2) 6000 L/MIN TO GALLONS/HOUR.

Density White Board Review Pick up a board, marker, paper towel & calculator.

Matter Review. What is the definition of density?

Accuracy & Precision Tuesday, August 25th, 2015.

Which of these objects will float and which will sink in water?

8 th Grade Science DO-NOW Complete RM 8 Volume 0 Record the mass of the object on the grid.

Goal: Explore and describe the densities of various materials through measurement of their masses and volumes.

How Reliable are Measurements?

4.1: Density Calculations

Density of Matter Bundle 6: Chemistry.

Density Practice Problems

Unit 2- Measurements- Accuracy Precision % Error

DO NOW Turn in lab safety contract, syllabus, and student information sheet if you have not already. Pick up lab handouts and READ. Get out a calculator.

DENSITY OF SODA AND DIET SODA

Determining if an object will float or sink

Density of Air INB 44.

Daily Science August 29 Write the abbreviation for microliters.

volume and density measurement for test on Tuesday.

Safety and Density.

U4-3 Density Review Write the density formula.

DENSITY 7.P.2B.2 Use mathematical and computational thinking to describe the relationship between the mass, volume, and density of a given substance.

Volume and Density.

Accuracy and Precision

Accuracy & Precision Friday, September 2nd, 2016.

Uncertainty in Measurement

Accuracy and Precision

Accuracy and Precision

DENSITY Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the.

Accuracy and Precision

A closer look at the physical property of Density

Accuracy and Precision

When you finish your quiz, Read pages 49-53, Section 2

Lab 8 The Density of Water Purpose Background PART 1

Lab Skills Intro.

Presentation transcript:

Density D= Mass_ Volume Mass: put matter on balance Volume: - graduated cylinder - geometry volume formulas - displacement

Volume by Displacement

Example An unknown mineral has a mass of 16 grams. A graduated cylinder is filled with 10. mL of water. The mineral is dropped into the cylinder and the water level rises to 18 mL. What is the density of the mineral?

Accuracy versus Precision Now, you draw accurate but not precise:

Examples The accepted value is 29.35. Describe the data below in terms of accuracy and precision. Trial Measurement 1 29.48 2 28.97 3 29.27

% Error % error = | experimental – accepted| accepted X 100 =

Example A student calculates the density of iron as 6.80 g/cm3 by using lab data for mass and volume. A handbook reveals that the correct value is 7.86 g/cm3. What is the percent error?