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Montessori’s Laws of the Universe feature 21 Science experiments or demonstrations that are suitable for ALL children! This material is suitable for any classroom, homeschool, or educational environment – you do not have to be a Montessori teacher. Save yourself HOURS of work.

Experiments included:

  • Cold – Freezing
  • The formation of the star
  • Solid – Liquid – Gas
  • Liquid – Viscous
  • Passing from solid to liquid to gas
  • Passing from gas to liquid to solid
  • Particles that attract each other and particles that do not attract each other
  • Mixture
  • Chemical combination of gas
  • Crystallization
  • Chemical reaction
  • Precipitation
  • Properties of solid, liquid, and gas
  • Elastic, plastic, and rigid Matter changes its state at different temperatures
  • A) Law of gravity
  • B) Density and the law of gravity
  • Rapidity of cooling depends on the mass of the bodies
  • Volcano
  • Matter expands when heated
  • Quick evaporation

The ‘Laws of the Universe’ experiments are intended for children in preparation for the Story of Creation. The twenty-one experiments are presented in order and are an impressionistic way for children to learn about science and the history of our planet on a sensorial level. All of the information you need to perform these experiments is included:

  • A numbered list of the experiments
  • Command cards for each experiment
  • Command cards for each scientific statement of outcomes
  • A reproducible record sheet for student observations



Make observations and/or measurements to provide evidence of the effects of weathering or the rate of erosion by water, ice, wind, or vegetation. Examples of variables to test could include angle of slope in the downhill movement of water, amount of vegetation, speed of wind, relative rate of deposition, cycles of freezing and thawing of water, cycles of heating and cooling, and volume of water flow. Assessment is limited to a single form of weathering or erosion.


Develop a model to describe that matter is made of particles too small to be seen. Examples of evidence could include adding air to expand a basketball, compressing air in a syringe, dissolving sugar in water, and evaporating salt water. Assessment does not include the atomic-scale mechanism of evaporation and condensation or defining the unseen particles.


Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred. Examples of reactions could include burning sugar or steel wool, fat reacting with sodium hydroxide, and mixing zinc with hydrogen chloride. Assessment is limited to analysis of the following properties: density, melting point, boiling point, solubility, flammability, and odor.


Ask questions to determine cause and effect relationships of electric or magnetic interactions between two objects not in contact with each other. Examples of an electric force could include the force on hair from an electrically charged balloon and the electrical forces between a charged rod and pieces of paper; examples of a magnetic force could include the force between two permanent magnets, the force between an electromagnet and steel paperclips, and the force exerted by one magnet versus the force exerted by two magnets. Examples of cause and effect relationships could include how the distance between objects affects strength of the force and how the orientation of magnets affects the direction of the magnetic force. Assessment is limited to forces produced by objects that can be manipulated by students, and electrical interactions are limited to static electricity.


Conduct an investigation to determine whether the mixing of two or more substances results in new substances.


Make observations and measurements to identify materials based on their properties. Examples of materials to be identified could include baking soda and other powders, metals, minerals, and liquids. Examples of properties could include color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, and solubility; density is not intended as an identifiable property. Assessment does not include density or distinguishing mass and weight.

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