Cornelsen Experimenta

Students kit Balances and equilibrium


The kit provides simple seesaws, beam balances, spring balances, dial balances and balance beam (lever) calculating machines.
 
Children learn some historical and physical aspects of scales and weighing. They also learn

  • to understand the principle of a seesaw
  • to assemble and use a beam balance
  • to calculate with a system of measures
  • a common system of measures
  • to appreciate the advantages of a common
    system of measures

 
Age 7-9
Materials for 15 work groups (for 30 children)

The picture shows a toolbox for experimental supplies, which is divided into two compartments. It contains numerous components such as switches, paint trays, tubes and other materials that can be used for school experiments.

The picture shows a toolbox for experimental supplies, which is divided into two compartments. It contains numerous components such as switches, paint trays, tubes and other materials that can be used for school experiments.
The picture shows a red carrying case with experiment materials on the topic of "scales and balance". Inside are various components and an instruction manual that can be used for practical experiments in class.
The picture shows a student set entitled "Scales and Balance" by Cornelsen, which contains materials for experiments in education. In the background you can see a red storage box that presents various experimental materials.
The picture shows a set for experiments, which consists of yellow plastic parts and green foam padding. In a transparent box there are various small objects such as wooden discs, paper clips and other materials for experiments.
The picture shows a red storage box lined with green foam. Inside the box are transparent tubes with colored markings, probably used for experimental purposes in the educational field.
The picture shows a set of experimental materials consisting of yellow and red plastic components arranged in a protective green foam packaging. The parts seem to be designed for experimental purposes in the educational field.
The picture shows instructions for constructing a beam balance with the materials needed and their names. It serves as a teaching material for students to explore the concept of weight and balance.
The picture shows a page from an experimental supplies manual that lists different types of scales. Each scale is described with its advantages and disadvantages, including illustrations and suggestions for replicating it.
The picture shows an experiment set for the topic "Scales and balance". It contains various materials such as two yellow scales, a red holder, a yellow scale and instructions for experiments in the educational field.
The picture shows a red and yellow seesaw with two yellow bowls that can be used for weight measurements. Next to the seesaw is a transparent container with various small weights and materials for experiments.
The picture shows two children playing together with an experimental device. They are carefully observing how the weight on a beam balance made of colorful components affects the balance, while various small objects on the table

item number 31780

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further product description

Technical specifications

Size of kit: 540 x 450 x 150 mm

experiments
  • 1 - Grams and kilograms

    experiment "Grams and kilograms"

    The students should deal with the set of weights practically and mathematically.


  • 2 - Measurement results

    experiment "Measurement results"

    The students determine the weight of various objects from their school bag. As a learning objective check, they state the weight of some items from the set of small items.


  • 3 - In balance

    experiment "In balance"

    The students should balance various objects (e.g. ruler, pencil, seesaw beam weighted on one side) on their fingers.


  • 4 - Rockers

    experiment "Rockers"

    The students should understand real playground situations in experiments with the model seesaw and decide how the presented placement problems can be solved.


  • 5 - The calculating scale

    experiment "The calculating scale"

    Using the calculating scales, the students find out in a playful way: The longer the "arm", the fewer weights are needed to balance the beam. The shorter the "arm", the more weights have to be attached. The arm is always the distance from the load - here the weight cube - to the fulcrum (seesaw beam) referred to.


  • 6 - The quick scale

    experiment "The quick scale"

    The students use suitable test materials to recreate a Roman scale that is originally shown in two photos. You will find out when you use them: The "arms" of this type of scale are of unequal length. Weights are superfluous once a scale has been established. The weighing is done by establishing the balance with the help of a slider.


  • 7 - The spring scale

    experiment "The spring scale"

    The students build a spring scale from prefabricated parts and make a gram scale themselves. The students recognize that if you hang an object on a spring, it expands. The weight of the object can be deduced from the length of its extension.


  • 8 - Compare with the beam balance

    experiment "Compare with the beam balance"

    The students can put together a beam scale from the given individual parts and balance it with the help of the taring slide ("compensating slide").
    Through repeated weighing, the students determine any number of pairs of objects from their school materials for which the relationships "heavier than", "lighter than" or "as heavy as" apply.


  • 9 - Scales and balance

    experiment "Scales and balance"

    We will shortly provide you with a description of the experiment at this point.


  • 10 - Scales in olden times

    experiment "Scales in olden times"

    The students recognize from two drawings: scales have been around for a long time. The forms changed, but the need to determine weights remained the same.


  • 11 - Weights then and now

    experiment "Weights then and now"

    The students learn that the weights in grams and kilograms were not always common and not common among all peoples and that e.g. T. units of weight based on natural resources were used.


  • 12 - Our weight set

    experiment "Our weight set"

    We will shortly provide you with a description of the experiment at this point.


  • 13 - How hard is...?

    experiment "How hard is...?"

    The students experience or determine (e.g. in demonstration weighing) the weights of various objects that either occur in their environment or are of particular interest to them.


scope of supply
  • 13 × Spring scale, 25 g yellow
  • 15 × Seesaw, plastic yellow
  • 30 × Scale pan, yellow with red holder
  • 1 × Plastic case ca.540x450x150 mm
  • 1 × Foam insert 2 for 31780, 515x360x85 mm
  • 1 × Plastic box 105x90x50 mm
  • 1 × Set of spare parts for balances (in box)
  • 15 × Seesaw support
  • 15 × Balance slider (adjustment rider)
  • 1 × Foam insert 1 for 31780, 505x350x45 mm
  • 15 × Set of small materials
  • 15 × Balance beam, yellow
  • 15 × Balance stand, plastic red
  • 1 × Storing diagram,int.vers.
  • 1 × Tray 510x360x20 mm
  • 1 × Spring balance 5000 g (Graduation: 100 g)
  • 15 × Set of weights (in box)
  • 2 × Spring scale, 75 g, red
Primary natural science

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