Mass & Weights

In common usage, the mass of a body is often referred to as its weight, although they are actually different concepts and quantities. In a scientific context, mass is the amount of "matter" in an object (although "matter" is hard to define), while weight is the force that gravity exerts on an object. In other words, an object of mass 1.0 kg on the surface of the Earth would weigh about 9.81 newtons, or its mass multiplied by the strength of the gravitational field. On Mars, where gravity is weaker, an object weighs less; And its weight increases on Saturn, where gravity is stronger, and space is very small and far from the source of gravity; But it still has the same mass.
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calibrated-student-masses-weight-for-laboratory-use
CWSG
Reliable student masses (Weight) for educational laboratory experiments.
options
From $10 /unit
density-cubes-aluminum-20mm-x-20mm
CSAL20X20
Lightweight aluminum cubes for density experiments and comparisons.
options
From $3.59 /unit
density-cubes-metals-aluminum
3510A-ALUM
Aluminum cubes for density comparison and experimentation.
options
From $0.18 /mm
density-cubes-metals-brass
3510A-BRAS
Precision brass cubes for density comparison and experimentation.
options
From $0.26 /mm
density-cubes-metals-copper
3510A-COPP
High-density copper cubes for comparison and experimentation.
options
From $0.30 /mm
density-cubes-metals-iron
3510A-IRON
Accurate iron cubes for density experiments in classroom/laboratory.
options
From $0.22 /mm
density-cubes-metals-tin
3510A-LEAD
High-density lead cubes for experimentation, 10mm or 20mm.
options
From $0.26 /mm
density-cubes-metals-tin
3510A-TIN
density Tin cubes for experimentation, 10mm or 20mm.
options
From $0.46 /mm
density-cubes-metals-zinc
3510A-ZINC
High-quality zinc cubes for density experiments.
options
From $0.26 /mm
density-cubes-set-of-12-metal-and-non-metal-cubes
DCS12
Set of 12 metal and non-metal cubes for learning about density and
options
From $33.20 /unit
density-cubes-set-of-12-metal-cubes-10mm
DCSM106
Metal cubes for comparing density and physical properties.
options
From $18 /unit
density-cubes-set-of-5-non-metal-20mm-cubes
DCSNM205
Compare non-metal material density and properties.
options
From $15 /unit
masses-with-hooks-on-both-sides-5-gm
3422-10GM
Dual-sided brass weights with nickel plating and hooks.
options
From $4.50 /unit
masses-with-hooks-on-both-sides-5-gm
3422-2GM
Dual-hooked brass weights for versatile hanging.
options
From $2 /unit
masses-with-hooks-on-both-sides-5-gm
3422-20GM
Dual-sided brass weights with 20gm hooks.
options
From $5.20 /unit
masses-with-hooks-on-both-sides-5-gm
3422-5GM
Double-sided brass weights with hooks for versatile hanging.
options
From $3.50 /unit
masses-with-hooks-on-both-sides-5-gm
3422-50GM
Dual-sided brass weights with nickel plating and hooks.
options
From $8.50 /unit
masses-with-hooks-set-of-9
MASSET9H
9 hooks for organizing masses.
options
From $49 /unit
3406B-1GR
Brass and steel masses with hooks, sold individually or in set.
options
From $1 /unit
3406B-10GR
Brass and steel masses with hooks and spare hooks.
options
From $4 /unit
3406B-100G
Brass and steel masses with hooks, sold individually or in set.
options
From $11.50 /unit
3406B-1000
Brass and steel masses with hooks, sold individually or in set.
options
From $20 /unit
3406B-500G
Brass masses with hooks, available individually or as set.
options
From $16 /unit
metal-blocks-density-blocks-set-of-4
P61010
Metal blocks for measuring and comparing density.
options
From $14 /unit
metal-cylinder-set-6-pieces-10-x-40-mm
METCYLSET6_40
Metal cylinders for science enthusiasts and experiments.
options
From $17.50 /unit
slotted-mass-slotted-weight-5-gram-made-of-aluminum-for-brass-hanger
SWB5GA
Aluminum weight for brass hanger, 5 grams.
options
From $0.99 /unit
slotted-masses-1-gram-spare
SWB1G
Precision weight set for scientific measurements.
options
From $1.10 /unit
slotted-masses-2-grams-spare
SWB2G
Precise weight adjustment for scientific experiments.
options
From $1.60 /unit
slotted-masses-20-grams-spare
SWB20G
Precision weight adjustment for scientific experiments.
options
From $4.55 /unit
slotted-masses-200-grams-spare
SWB200G
200g weight set with slotted design for easy manipulation.
options
From $3.50 /unit
slotted-masses-5-grams-spare
SWB5G
Precision weight measurement for scientific experiments.
options
From $1.90 /unit
slotted-masses-50-grams-spare
SWB50G
Weight measurement tool with removable parts.
options
From $6.50 /unit
slotted-weight-set-with-hanger
G2500
Physics weight set for Hooke's Law and balance demonstrations.
options
From $14 /unit
slotted-weights-set-of-12-for-aluminum-hangers
WHST12
12-piece weight set for aluminum hangers with stand.
options
From $20 /unit
slotted-weights-set-of-8
WHST08
8 brass weights with stand.
options
From $59 /unit
three-beam-balance-scale-laboratory-scale
MB2610
Accurate weighing for laboratory use.
options
From $85 /unit
weight-boxes-general-purpose
3416B
Might include one of 1g, 5g, 10g, 50g, 100g, 500g, 1000g and two of 2g, 20g and 200g masses.
options
From $42 /Range:
weight-hanger-for-slotted-weights-50gr-aluminum
WH50A
50g weight hanger for slotted weights, aluminum.
options
From $6 /unit
weight-hanger-for-slotted-weights-50gr-brass
WH50B
50g weight hanger for slotted weights, Brass.
options
From $6 /unit
calibrated-student-masses-weight-for-laboratory-use
Calibrated Student Masses (Weight) for Laboratory Use
Reliable student masses (Weight) for educational laboratory experiments.
Add To Cart
$10
SKU: CWSG
density-cubes-aluminum-20mm-x-20mm
Density Cubes, Aluminum 20mm x 20mm
Lightweight aluminum cubes for density experiments and comparisons.
Add To Cart
$4.99 - $359
SKU: CSAL20X20
density-cubes-metals-aluminum
Density Cubes, Metals Aluminum
Aluminum cubes for density comparison and experimentation.
Add To Cart
$1.75 - $4.99
SKU: 3510A-ALUM
density-cubes-metals-brass
Density Cubes, Metals Brass
Precision brass cubes for density comparison and experimentation.
Add To Cart
$2.60 - $9.70
SKU: 3510A-BRAS
density-cubes-metals-copper
Density Cubes, Metals Copper
High-density copper cubes for comparison and experimentation.
Add To Cart
$2.95 - $11.26
SKU: 3510A-COPP
density-cubes-metals-iron
Density Cubes, Metals Iron
Accurate iron cubes for density experiments in classroom/laboratory.
Add To Cart
$2.20 - $7.84
SKU: 3510A-IRON
density-cubes-metals-tin
Density Cubes, Metals Lead
High-density lead cubes for experimentation, 10mm or 20mm.
Add To Cart
$2.60 - $9.27
SKU: 3510A-LEAD
density-cubes-metals-tin
Density Cubes, Metals Tin
density Tin cubes for experimentation, 10mm or 20mm.
Add To Cart
$9.27
SKU: 3510A-TIN
density-cubes-metals-zinc
Density Cubes, Metals Zinc
High-quality zinc cubes for density experiments.
Add To Cart
$2.60 - $8.55
SKU: 3510A-ZINC
density-cubes-set-of-12-metal-and-non-metal-cubes
Density Cubes, Set Of 12 Metal And Non-Metal Cubes
Set of 12 metal and non-metal cubes for learning about density and
Add To Cart
$41 - $3320
SKU: DCS12
density-cubes-set-of-12-metal-cubes-10mm
Density Cubes, Set Of 12 Metal Cubes 10mm
Metal cubes for comparing density and physical properties.
Add To Cart
$18
SKU: DCSM106
density-cubes-set-of-5-non-metal-20mm-cubes
Density Cubes, Set Of 5 Non-Metal 20mm Cubes
Compare non-metal material density and properties.
Add To Cart
$15
SKU: DCSNM205
masses-with-hooks-on-both-sides-5-gm
Masses With Hooks On Both Sides 10 Gm
Dual-sided brass weights with nickel plating and hooks.
Add To Cart
$4.50
SKU: 3422-10GM
masses-with-hooks-on-both-sides-5-gm
Masses With Hooks On Both Sides 2 Gm
Dual-hooked brass weights for versatile hanging.
Add To Cart
$2
SKU: 3422-2GM
masses-with-hooks-on-both-sides-5-gm
Masses With Hooks On Both Sides 20 Gm
Dual-sided brass weights with 20gm hooks.
Add To Cart
$5.20
SKU: 3422-20GM
masses-with-hooks-on-both-sides-5-gm
Masses With Hooks On Both Sides 5 Gm
Double-sided brass weights with hooks for versatile hanging.
Add To Cart
$3.50
SKU: 3422-5GM
masses-with-hooks-on-both-sides-5-gm
Masses With Hooks On Both Sides 50 Gm
Dual-sided brass weights with nickel plating and hooks.
Add To Cart
$8.50
SKU: 3422-50GM
masses-with-hooks-set-of-9
Masses With Hooks, Set Of 9
9 hooks for organizing masses.
Add To Cart
$49
SKU: MASSET9H
Masses With Hooks, Spare 1 Gram
Brass and steel masses with hooks, sold individually or in set.
Add To Cart
$1
SKU: 3406B-1GR
Masses With Hooks, Spare 10 Grams
Brass and steel masses with hooks and spare hooks.
Add To Cart
$4
SKU: 3406B-10GR
Masses With Hooks, Spare 100 Grams
Brass and steel masses with hooks, sold individually or in set.
Add To Cart
$11.50
SKU: 3406B-100G
Masses With Hooks, Spare 1000 Grams
Brass and steel masses with hooks, sold individually or in set.
Add To Cart
$20
SKU: 3406B-1000
Masses With Hooks, Spare 500 Grams
Brass masses with hooks, available individually or as set.
Add To Cart
$16
SKU: 3406B-500G
metal-blocks-density-blocks-set-of-4
Metal Blocks (Density Blocks Set Of 4)
Metal blocks for measuring and comparing density.
Add To Cart
$16 - $140
SKU: P61010
metal-cylinder-set-6-pieces-10-x-40-mm
Metal Cylinder Set (6 Pieces) 10 X 40 Mm
Metal cylinders for science enthusiasts and experiments.
Add To Cart
$17.50
SKU: METCYLSET6_40
slotted-mass-slotted-weight-5-gram-made-of-aluminum-for-brass-hanger
Slotted Mass, Slotted Weight, 5-Gram, Made Of Aluminum, For Brass Hanger
Aluminum weight for brass hanger, 5 grams.
Add To Cart
$0.99
SKU: SWB5GA
slotted-masses-1-gram-spare
Slotted Masses, 1 Gram, Spare
Precision weight set for scientific measurements.
Add To Cart
$1.30 - $11
SKU: SWB1G
slotted-masses-2-grams-spare
Slotted Masses, 2 Grams, Spare
Precise weight adjustment for scientific experiments.
Add To Cart
$1.60
SKU: SWB2G
slotted-masses-20-grams-spare
Slotted Masses, 20 Grams, Spare
Precision weight adjustment for scientific experiments.
Add To Cart
$4.55
SKU: SWB20G
slotted-masses-200-grams-spare
Slotted Masses, 200 Grams, Spare
200g weight set with slotted design for easy manipulation.
Add To Cart
$3.50
SKU: SWB200G
slotted-masses-5-grams-spare
Slotted Masses, 5 Grams, Spare
Precision weight measurement for scientific experiments.
Add To Cart
$1.90
SKU: SWB5G
slotted-masses-50-grams-spare
Slotted Masses, 50 Grams, Spare
Weight measurement tool with removable parts.
Add To Cart
$6.50
SKU: SWB50G
slotted-weight-set-with-hanger
Slotted Weight Set with Hanger
Physics weight set for Hooke's Law and balance demonstrations.
Add To Cart
$16 - $140
SKU: G2500
slotted-weights-set-of-12-for-aluminum-hangers
Slotted Weights Set Of 12 For Aluminum Hangers
12-piece weight set for aluminum hangers with stand.
Add To Cart
$20
SKU: WHST12
slotted-weights-set-of-8
Slotted Weights Set Of 8
8 brass weights with stand.
Add To Cart
$59
SKU: WHST08
three-beam-balance-scale-laboratory-scale
Three Beam Balance Scale, Laboratory Scale
Accurate weighing for laboratory use.
Add To Cart
$85
SKU: MB2610
weight-boxes-general-purpose
WEIGHT BOXES, GENERAL PURPOSE
Might include one of 1g, 5g, 10g, 50g, 100g, 500g, 1000g and two of 2g, 20g and 200g masses.
Add To Cart
$42 - $200
SKU: 3416B
weight-hanger-for-slotted-weights-50gr-aluminum
Weight Hanger (For Slotted Weights) 50Gr Aluminum
50g weight hanger for slotted weights, aluminum.
Add To Cart
$7.50 - $60
SKU: WH50A
weight-hanger-for-slotted-weights-50gr-brass
Weight Hanger (For Slotted Weights) 50Gr, Brass
50g weight hanger for slotted weights, Brass.
Add To Cart
$7.50 - $60
SKU: WH50B
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