Sig Digs Lab Practice – Rd 2

Slides:

Advertisements

Similar presentations

Notebook p 29 Three Ways To Determine Density. 1) Regular Objects 1.Measure the each side of the block in centimeters. Calculate volume in cm³: multiply.

Advertisements

COIN DENSITY OBJECTIVE: Review density by measuring mass and volume then calculating density. Pg. 22 of IAN.

Measurement. Volume – Regular Shaped Object You can find the volume of a solid by multiplying length, width, and height together. Formula : V = l x w.

Objective: To calculate density.. - Volume of a cube or block = length x width x height - Volume of irregular shaped object = use water displacement.

The steps how to calculate mass, volume, and density

Density is the mass per unit volume of an object.

Sig Figs meet Rounding!. In Science we take measurements, but those measurements are sometimes needed to find the values that we really want. For example:

Separating Mixtures The components of a mixture can be separated based on the physical properties of: Magnetism.

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

Density. What is Density? Density is how closely packed together molecules are in a substance. Formula: Density = mass volume D = m V.

WARM UP How many sig Figs are in the following measurements? x ,050, x 10 7.

Derived Units Volume = length  width  height Density = mass per unit volume (g/cm 3 or g/ml) D = MVMV D M V.

Density. Definition Density: The amount of matter in a certain volume. (How much matter is in a given amount of space.) Example: Each of the spheres in.

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.

Finding VOLUME DeMarco. The OBJECTS FORMULA? L x W x H Length = 6cm.

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

7.2 Fluids and Density 1)A fluid is any form of matter that can flow. a)Liquids and gases are fluids since they do not have a fixed shape. b)Solids are.

Finding VOLUME. What is VOLUME? The amount of space that a 3-dimensional object takes up. Anything that exists, has volume…

1. Which is more dense, water or wood? How do you know? 2. Which is more dense, 1 pound of lead or 100 pounds of lead? Wood, if it sinks in water. SAME!

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)

Density. Problem 1 Given: mass = g volume= 100 ml Find: density Solution: DV M.

Station One - Length of Block Measure the length of the block in cm. Record the initial measurement in the data table. Using dimensional analysis, convert.

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.

Sig Digs Lab Practice (Show units and correct sig digs.) Al strip: Measure the mass, length, and width. Calculate:Mass Area Given that the density of Al.

Introduction to Density  Density is the measurement of the mass of an object per unit volume of that object. d = m / V  Density is usually measured in.

1 2.8 Density Density Calculations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

Introduction to Matter Lecture: Calculating Density.

Bell Work Aug 19, 2015 SPI 0807.Inq.2 (Tools and Procedures) 1.Calculate the Area if the Length is 2cm and Width 5cm. 2.Calculate the Volume if the Length.

Characteristic Physical Properties. Characteristic physical properties are properties that are unique to a substance and can be used to identify it. For.

Measuring Measuring Length, Mass, and Volume. How long is the following? Ans. 7.7 cm.

Significant Figures Homework: Working with Numbers handout # 1 – 13 Significant Figures handout #

Volume The amount of space an object takes up. 3 ways to measure volume Liquid Volume –Graduated cylinder mL Volume of a Regular Solid –Length x Width.

Calculations Involving Density Calculating Density from Mass and Volume.

How can you compare the densities of liquids without calculations?

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

Density Lab Density = Mass/Volume. Density of Blocks – Same type, different sizes ItemMass (g) Length (cm) Width (cm) Height (cm) Volume (cm3) Density.

Density. Take a look at the two boxes below. Each box has the same volume. If each ball has the same mass, which box would weigh more? Why?

Density Practice Quiz!!. Practice Density Problem #1 Students doing a lab started with 30 ml of water in a graduated cylinder. They added an object to.

Unit 1 Review Measurements.

Significant Figures in Calculations

Derived Units A unit obtained by combining or manipulating different SI units is called a derived unit Examples of derived units include volume and density.

Density- notes page 21 Essential Question: How do we explain density?

Mass & Volume 6th grade.

Density- Cornell notes page 21

Density Practice Problems

Thickness of a Thin Layer

Determining if an object will float or sink

Warm-Up Perform the following calculations and write your answer with the proper number of sig figs. (1.79 g) / (3.7 mL) = (432.0 cm) x (120 cm) = (2.

Physical Science Density Challenge 2

Understanding Density

MEASUREMENT Part4.

Test Review Number your paper 1-17

To calculate Density you divide Mass by volume.

Significant Figures in Calculations

Measurements and Calculations

Under the document camera

3.4 Density More Calculations!.

What is the equation to find the weight of an object?

Which of these numbers has the most significant figures E 5

Measurement I. Units of Measurement (p.34-45) Number vs. Quantity SI Base Units & Prefixes Derived Units Density Calculations.

Practice Final Exam.

Presentation transcript:

Sig Digs Lab Practice – Rd 2 At your lab station you have a piece of Zinc. Think about what you would need to do to determine the density of the Zinc both by linear measurement and by volume displacement. Set up a data table. (Show units and correct sig digs in your measurements & calculations.) (Tilt & Slide…NO BOMBS AWAY)

Zn piece: Mass _______g Length _______cm Width _______cm Height _______cm Calculate: Density = Mass Volume 16.58 15.75-17.41 Vf _______ml Vi _______ml VZn _______ml 0.01 2.56 0.1 0.01 0.95 0.95 2.2-2.4 **Multiple measurements 2 sigs 2 sigs D = 7.1 g/cm3 D = 7.1 g/ml