Monthly Archives - January 2011

Density Rods

The Density Rod Set consists of two rods. The aluminum rod sinks in warm water and floats in cool. This is because cool water is more dense than warm, and the aluminum rod is made to be between those two densities. The PVC rod does the reverse – floats in warm water and sinks in cool. This time, the rod changes more than the water, becoming more dense when it is cool.

Required Equipment
Balance, Film Canisters, Pennies, Tape

Download Teacher Notes and Student Worksheets

Density Rod Set

In Stock SKU: P1-1020
$20.00

100 ml Polypropylene Cylinder

In Stock SKU: 06-3043
$4.00

Student Thermometer

In Stock SKU: 68-6202
$3.75

The “food coloring and rubbing alcohol” required for this lab is readily available at grocery store. Each lab group would need one container of each.

Read more...

Quantum Lab (Inquiry)

Indirect Measurement Lab

Something that is quantized exists in multiples of a set quantity. Examples are charge [1.6 x 10-19C] or quantum energies of photons. Planck and Einstein predicted that light existed as discrete bundles called photons. Since they could not see a unit of photon energy, this lab constructs a model of how quanta was derived and visualized by scientists. In this INQUIRY lab, students will develop their own method for finding the pennies’ mass.

Required Equipment
Balance, Film Canisters, Pennies, Tape

Download Teacher Notes and Student Worksheets

Sartorius M-Prove Model AY511 510g X 0.1g

In Stock SKU: 02-7069
$179.00

The Film Canister required for this lab is readily available here

The “Tape” required for this lab is readily available at your office or school supply store. Each lab group would need one roll or access to a roll.

Read more...

Quantum Lab

Quantum Measurement Lab

Something that is quantized exists in multiples of a set quantity. Examples are charge [1.6 x 10-19C] or quantum energies of photons. Planck and Einstein predicted that light existed as discrete bundles called photons. Since they could not see a unit of photon energy, this lab constructs a model of how quanta was derived and visualized by scientists.

Required Equipment
Balance, Film Canisters, Pennies, Tape

Download Teacher Notes and Student Worksheets

The “Tape” required for this lab is readily available at your office or school supply store. Each lab group would need one roll or access to a roll.

Sartorius M-Prove Model AY511 510g X 0.1g

In Stock SKU: 02-7069
$179.00
Read more...

Picture of a Lab: Different Graph Types

Picture of a Lab – Different Graph Types

Station #1 investigates the relationship between force and displacement of a stretched spring. Students will discover a direct linear relationship, with an equation of the form y = mx + b. Station #2 demonstrates Boyle’s Law, or the relationship between the pressure on a gas and its volume. The graph is a hyperbola, y = 1/x. Station #3 relates light intensity to distance from the source. The graph shows an inverse-square relationship, with an equation y = 1/x2. Station #4 uses staggered, stacked blocks to result in a simple parabolic graph, where y = x2.
Indicates the level of technology required for the lab activity.
Indicates the level of technology required for the lab activity.
Good for grade levels 5 through 9
Good for grade levels 9 through 12

Click here for applicable science standards

Required Equipment
Hooked Masses, Meter Stick, Motion Sensor, D-Cell Holder, D-Cell Battery, 2 Alligator Wires, Mini Bulb Holder, Mini Bulb, light sensor, Data-logger, Spring Set/3, Computer with Excel or other graphing application, Several identical weights or books, 7 wood blocks

Acknowledgements: Thank you to Dwight “Buzz” Putnam for his assistance in developing this lab. Buzz is a 25 year veteran physics teacher at Whitesboro High School, New York Science Teacher of the Year and Host of the Regents Physics Answers television show on PBS. You can also find him refereeing high school basketball games as well as presenting at the NSTA National Conferences.

Download Teacher Notes and Student Worksheets

Hooked Mass Set

In Stock SKU: P1-1000
$85.00

Go! Motion Sensor

In Stock SKU: P4-2400
$119.00

D-Cell Battery Holder

In Stock SKU: P6-1400
$2.25

C Battery

In Stock SKU: 44-1091
$1.50

Alligator Leads (Pack of 10)

In Stock SKU: P4-3000
$4.50

Miniature Bulb Base

In Stock SKU: P6-1401
$1.50

3.2V Miniature Bulbs 10 Pack

In Stock SKU: P6-1407
$5.50

Spring Set, 3 Different Sizes

In Stock SKU: PX-2120
$5.95

The “Computer with Excel or other graphing application” required for this lab is any computer that you may have that has software capable of plotting graphs. In order to use the data logger in this experiment, the computer would need to be of PC version (Windows).

The “Several identical weights or books” required for this lab are any objects that you may have or that can also be purchased from your local convenience or hardware store that are identical in weight.

The “wood blocks” required for this lab can be cut from any lumber that you may have or purchased from your local building supply store. The blocks should all be identical in measurements.

 

Read more...

Eureka!

Chapter 19 Lab #51:

Students will determine the volume of irregularly shaped objects and observe the relationship of their mass and volume as they use the displacement method of finding volume.

Economy Triple Beam Balance

In Stock SKU: 02-7600
$96.00

1000ml Polypropylene Beaker

In Stock SKU: 06-3034
$5.00

Borosilicate Cylinder 500mL

In Stock SKU: 24-1025
$11.50

Steel Bolts 5/pk

In Stock SKU: PX-2124
$0.55
Read more...

Lab #9.7 Mechanics: Chapter 9 Dropping The Ball

Purpose
In this experiment, you will lift a ball and drop it. You will determine and compare the potential energy of the ball before it’s dropped to the kinetic energy of the ball after right before it hits the ground.

Discussion
When an object is lifted, the work done to lift the object is transformed into potential energy. If the object is then dropped, the potential energy is transformed to kinetic energy as it falls. In this experiment, we will determine the potential energy of a lifted object. We will also determine the kinetic energy of a dropped object. We will then compare the potential energy that an object has when it is lifted to a certain height to the kinetic energy it has after it has fallen from that height.

Required Equipment

Acrylic Tube, 1/2″ Steel Ball, Small Rare Earth Magnet, Timer and 2 Photogates, Ring Stand and Base,  2 Burette Clamps, Meter stick.

Download

Student Worksheet   Teacher Notes

1/2" Steel Ball

In Stock SKU: P1-5001
$0.30

Pair of Neodymium Magnets

In Stock SKU: P8-1123
$15.00

Timer and Photogates

In Stock SKU: P4-1450
$279.00

Ring Stand Base with Rod

In Stock SKU: 66-4220
$17.00

Buret Clamp

In Stock SKU: 66-8002
$9.80

Meter Stick 6 pack

In Stock SKU: P1-7072
$18.00

acrylic tube (1.0-inch diameter, about 4 feet in length)

Read more...

Lab #9.1 Mechanics: Chapter 9 An Uphill Climb

Purpose
In this experiment, you will determine what advantage—if any—there is in using an inclined plane to move an object to a higher elevation.

Discussion
Why are ramps used when lifting heavy objects? Does it make the task easier (requires less force)? Does it make the movement shorter (requires less distance)? Does it make the effort more efficient (requires less work)? Perhaps it does several of these; maybe it does none of them. In this experiment, the cart will act as the heavy object. Your task will be to move your cart a vertical distance of 20 cm above the tabletop. You will arrange a series of ramps (inclined planes) at different angles to accomplish this task. You will measure the force needed to move a cart up the incline. You will also measure the distance through which that force would be applied to finish the job. You will then calculate the work required to lift an object using an inclined plane. By the end of the experiment, you will be able to identify what an inclined plane can do for you in terms of force, distance, and work.

Required Equipment

Car and ramp Lab, Workshop Stand, 1Kg/10n Spring Scale, Meter Stick, Protractor.

Download

Student Worksheet   Teacher Notes

 

Car and Ramp Lab

In Stock SKU: P4-1405
$185.00

Ring Stand Base with Rod

In Stock SKU: 66-4220
$17.00

1000g/10 N Spring Scale

In Stock SKU: 01-6962
$5.50

Meter Stick 6 pack

In Stock SKU: P1-7072
$18.00

Protractor

In Stock SKU: P1-1050
$1.30
Read more...

Why the Sky is Blue

Chapter 28 Lab #76:
Purpose: To investigate the mechanism that causes light to scatter.

Deluxe Green Laser Pointer

In Stock SKU: P2-7675
$75.00

Standard Red Laser Pointer

In Stock SKU: P2-7500
$28.00

Sympathetic Tuning Fork Set

In Stock SKU: P7-6000
$133.00

Laser Viewing Tank

In Stock SKU: P2-7690
$85.00

Flashlight With Batteries

In Stock SKU: 52-0010
$5.95
Read more...

Density of a Solid

Regular and irregular objects will be used. Students will devise a way of finding the volume of each object – calculating the volume of a cube or using water displacement for irregular objects. They will calculate the density of each and compare to standard values.

Required Equipment

Density Blocks, Balance, Graduated Cylinder, Various objects.

Download Teacher Notes and Student Worksheets

Assorted Density Block Set

In Stock SKU: P1-1010
$23.00

Sartorius M-Prove Model AY511 510g X 0.1g

In Stock SKU: 02-7069
$179.00

The “Various objects” required for this lab are any small irregular solid objects that you would like to calculate the density for as a part of this experiment.

Read more...

Flaming Out

Chapter 28 Lab #75:

Students will observe the spectra of some metal atoms.

Borosilicate Beaker 50mL

In Stock SKU: 06-1003
$2.25

Bunsen Burner

In Stock SKU: 14-5820
$19.50

Nichrome Wire 100ft/spool

In Stock SKU: 83-2024
$7.00

Portable Micro Burner

In Stock SKU: C5-1005
$49.00

Premium Butane Fuel 10oz.

In Stock SKU: C5-1009
$5.95

Quantitative Spectroscope

In Stock SKU: P2-7061
$10.00

Flame Salts

In Stock SKU: P2-7123
$77.00

Bulb Base 200 Watts

In Stock SKU: PX-1208
$9.25
Read more...