# Measurement

Liquid Volume (L) Objectives

Define liquid volume. Memorize the basic unit for liquid volume: Liter (L) Learn nonstandard measurements to approximate metric volume measurements. Learn and use proper procedure to measure liquid volume using a graduated cylinder.

Demonstrate accuracy using a graduated Habits of the Mind Striving for Accuracy Persisting

Titan Creed Striving to be our best, do our best Vocabulary

Graduated Cylinder the instrument used to measure liquid volume Measurement - determining the amount or quantity of something by comparison with a standard Meniscus - the curved surface at the top of the liquid; the bottom of the meniscus is used to measure the volume of a liquid.

Scale - a system of ordered marks at fixed intervals used as a reference standard in measurement Vocabulary LIQUID volume: The holding capacity of a container; the amount of liquid BASIC UNIT: liter (L) Liquids/gases are measured in liters (L)/milliliter (mL).

Note: What state of matter is not measured with this unit? Nonstandard Measurement UNIT Approximation milliliter

20 drops liter of a 2 Liter soda bottle Video Measuring Liquid Volume Reading a Graduated

Cylinder Read the scale from the bottom of the meniscus when measuring the volume of a liquid. Meniscus - curved surface of a liquid in a narrow cylindrical container REMEMBER! Estimate 1 place beyond the capability of the measuring device!

Adhesion of Water Molecules When you pour liquid into a container, the adhesion, or attraction, of the water molecules to the sides of the container causes the water molecules to get pulled up the side of the container. Meniscus - curved surface at the top of the liquid

Increment Formula Ending Value - Starting Value Number of Increments = Scale

Accuracy and Precision Accuracy - how close a particular measurement is to the correct value or a standard Precision - the consistency of repeated measurements o Data with a small range = more precision o Grouping of the data is close Reading a Graduated

Cylinder Step 1: Place the graduated cylinder on a flat surface. Step 2: Determine the scale. Subtract the values of any two adjacent labeled graduations. Divide by the number of steps. Reading a Graduated

Cylinder Step 3: Get perpendicular or eye level to the bottom of the meniscus. CORREC INCORRECT Step 4: UseT the scale you just found to measure the liquid using the lowest part of the meniscus! Estimate 1 place beyond the capability of the graduated cylinder.

Lets Try Together Determine the scale Subtract the values of any two adjacent labeled graduations. Divide by the number of steps. Locate the meniscus Use the scale to measure the liquid using the lowest part of the meniscus!!

Estimate 1 place beyond the capability of the graduated cylinder. Finalizing Liquid Amounts Whiteboard Practice 1. Scale: _____ 3. Scale: _____

5. Scale: _____ 2. mL: _____ 4. mL: _____ 6. mL: _____ Whiteboard Practice

7. Scale: _____ 9. Scale: _____ 11.Scale: _____ 8. mL: _____ 10. mL: _____ 12. mL: _____

Graduated Cylinder Practice 1. 2. 3. 4.

How do we accurately measure using a graduated cylinder? Activity: Color Challenge Objective: Demonstrate accuracy using a graduated cylinder. Materials: 3 beakers with colored water (red, blue, and yellow) 1 beaker (tap water)

3 graduated cylinders (various sizes) 1 pipette 6 test tubes labeled A, B, C, D, E, and F 1 test tube rack Activity: Color Challenge Directions: 1. Perform each step outlined below using accurate measurements. Do them in order.

2. Use the pipette for accuracy. 3. Rinse the graduated cylinder using the pipette (after each use) with water to prevent cross-contamination. NOTE: #10 Show teacher final amounts before Titan Creed Striving to be our best, do our best

## Recently Viewed Presentations

• Ad erume commos solorem quiduciliqui odi nusam acia dolorep udaepero voluptatur sit apit, nonsendes conectas milibus as sam remodit iusdam sim sam, verciandunt, ulpa vercil mo estiore pere volorest as re, corporit et debis re, con restori bernatem elique ium...
• Solution. Step 1. Draw the carbon chain. A molecule of pentane has five carbon atoms in a continuous chain. Step 2 Draw the expanded structural formula by adding the hydrogen atoms using single bonds to each of the carbon atoms.....
• pontis, pyramis, pedunc. uli. cerebelli (3). 6. Разпознаване на напречни срезове на основни ядра и пътища като ... tectum, tegmentum и basis. Въпреки видимите различия и трите части имат .
• Scarlet ibis Eudocimus ruber One of the most striking of all ibises, the scarlet ibis is distinguished by its brilliant red, pink and orange color. Even the scarlet ibis's legs and feet are red. While adults have a distinctive red...
• W5HH of Project Management. Boehmsuggests an approach (W5HH) that addresses project objectives, milestones and schedules, responsibilities, management and technical approaches, and required resources. Why. is the system being developed? Enables all parties to assess the validity of business reasons for...
• Cacophony. A big noise. ... "Cut-to" moment. A moment where an important point is made, then the movie cuts to an example of that very point ("…Unless they (raptors) learn how to open doors - cut to: raptor opening a...
• Assessment Lingo. Program Assessment- Uses the department or program as the level of analysis. Can be quantitative or qualitative, formative or summative, standards-based or value added, and used for improvement or for accountability. Ideally, program goals and objectives would serve...
• une importante distension gazeuse de l'anse sigmoïdienne enserrant son méso et dont les deux jambages se rapprochent pour finir en « bec d'oiseau » au niveau du pelvis. un signe du tourbillon (« whirl. sign ») : enroulement de l'anse...