Key Experiments

  • » The height of individuals - 0001.015
  • » The trees - 0001.130
  • » The sense of taste and substance identification - 0001.010
  • » Water is necessary for the germination of seeds - 0001.045
  • » The elements necessary for seed germination and growth of plants I - 0001.351
  • » The germination of the seed and the need of light and water - 0001.140
  • » The function of the plant roots - 0001.150
  • » One of the functions of the stem - 0001.155
  • » The photosynthesis, green plants need light (light energy) - ECOLOGY - 0001.170
  • » Soil stores water - 0001.205
  • » The types of soil and the water which these soils contain - 0001.210
  • » The sand, how it is formed and where it comes from - 0001.225
  • » Proving the existence of air - 0001.310
  • » The operation and use of the compass - 1082.124
  • » The light, the transparent, translucent and opaque means - 1062.002
  • » The shape of objects - 0001.017
  • » The vertical position of objects - 0001.020
  • » The arrangement of objects on flat surfaces - 0001.025
  • » The horizontal surface of still water - 0001.090
  • » The energy of moving air - 0001.035
  • » The solids, liquids and gaseous bodies - 0001.030
  • » Condensation of water - 0001.190
  • » Melting of ice, fusion may be faster or slower (do it on a sunny day) - 0001.080
  • » Separating objects with the use of a magnet - 0001.275
  • » Identifying objects by the sound - 0001.016
  • » Bass and treble - 0001.270
  • » Identifying some seeds - PLANTS - 0001.040
  • » Comparing different seeds - 1481.041A
  • » Comparing the development of the seed with the type of irrigation - 1481.441A
  • » The germination and the force exerted by the seed to germinate - 0001.145
  • » The stem conducts the sap to all parts of the plant - 0001.340
  • » The direction of root growth and the direction of stem growth - 0001.160
  • » The Phototropism - 1481.437A
  • » Observing the reproductive structures of bryophytes - 1481.007A
  • » Chlorophyll, the substance found in most green plants - 0001.175
  • » What are the structures of flowers like? - 0001.180
  • » The influence of light and the action of gravity on the growth of plants - 0001.352
  • » The difference between spines and thorns - 0001.355
  • » The decomposition of fruit under the action of mold - 0001.245
  • » The mold decomposes organic matter - 0001.250
  • » Observing the diffusion of particles - 1481.012
  • » What are the conditions offered by the egg so that the bird develops? - 0001.240
  • » Observation of arthropods: the antennae, the oral system, and legs - 1491.004A
  • » Dissection of mammalian kidney - 1491.005A
  • » Where are the bacteria? - 1505.013
  • » Vision defects, correction of hyperopia and myopia with lenses - 1062.003E7
  • » How do you identify the types of soil? - 0001.050
  • » The soil contains mineral salts - 0001.220
  • » The air contained in a vessel - 0001.095
  • » States of matter - the condensation of the vapors we exhale - 0001.085
  • » Some characteristics of the air we breathe in and out, oxygen and carbon dioxide - 0001.325
  • » Heated air expands and cold air contracts - 0001.110
  • » The pressure exerted by atmospheric air, atmospheric pressure - 0001.320
  • » How do you use a scalpel? - 1998.302
  • » Condensation, the change from gaseous to liquid state - 0001.060
  • » Fusion, the change from solid to liquid state - 0001.065
  • » Boiling and condensation of water - 1052.012A
  • » The physical states of water - 1052.008_A3
  • » Dilation, the increase in the volume of water when freezing - 0001.070
  • » The moving water and some consequences - 0001.195
  • » The general properties of matter - 0001.100
  • » The specific properties of matter - 0001.102
  • » Inertia, one of the general properties of matter - Newton´s first law - 1032.002_1
  • » Noting the compressibility and the elasticity of air - 0001.330
  • » The mapping of the magnetic field of a magnet, magnetism - 1082.120A
  • » Identifying sugar components - 0001.290
  • » Producing oxygen by a chemical reaction - 0001.125
  • » Homogeneous and heterogeneous mixtures - 0001.295
  • » Using filtration and evaporation for separating heterogeneous mixtures - 0001.285
  • » The decantation and filtration, two steps for the purification of water - 0001.200
  • » Using the magnet to separate components of a mixture - 0001.280
  • » The movement and the trajectory - 1032.001
  • » Force, mechanical deformation, plastic deformation and elastic deformation - 1032.018
  • » Pascal´s law, the hydraulic lift - 1042.026
  • » The thermoscope and thermometric scales - 1052.004B
  • » Difference between heat and temperature - 1052.004C2
  • » Some transformations of energy: the candle produces light and heat when burning - 0001.235
  • » The composition of colors in a Newton Disk - 1062.004R
  • » The principles of geometrical optics - 1062.003E1
  • » Electrification by friction, the principle of conservation of charge, law of charges - 1082.032
  • » Electrical conductors and electrical insulators - 1082.036
  • » The links in series, in opposition and in parallel between cells - 1082.040
  • » Color code in the characterization of a resistor (electrical resistance) - 1082.048
  • » Permanent magnets, temporary magnets and the electromagnet - 1082.140
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