Demonstration Lesson Plans Click
Below ! ! :
Section 1- Chemical
& Physical Changes
Section 3 - Water
& Its Properties
Section 4 - Corrosion
Section 5 - Acids/Bases/In dicators
Section 6 - Gases & Pressure
Appendix 1 -Charts & tables, Disposal of Chemicals, Sources of Chemicals, Preparations of Acid and Solutions
Appendix 2 Properties of Common Elements, Descriptions of the Elements, Ban Dihydrogen Monoxide
Appendix 3 Principles of Education, Prof. Hanko
The Reformed Witness, Rev. Cammenga
SECTION 2 : CHEMICAL AND PHYSICAL PROPERTIES
How should the Reformed believer understand the physical properties of matter?
This section deals with physical characteristic properties of matter. These properties of matter are properties that do not depend on how much of the substance there is present, but on the nature of the substance. These properties help scientists and others determine the difference between two different substances. In this section, primarily the property of density is considered.
Characteristic properties help us identify matter. Density is an important property because it also helps in distinguishing between different substances. We learn from this that God has ordained great diversity in the creation. When one studies botany, zoology, microbiology and the other fields of biology it is not very difficult to see that God created within the creation a vast number of different kinds of creatures. This is so very true also in Chemistry. In Organic chemistry one can study the vast amount of different kinds of compounds that can be made from the carbon atom as the fundamental element. In nuclear chemistry one can study the man different parts of the atom. In all of these aspects of Science one truly can see the complexity and diversity in the creation.
Density is used to distinguish typically between different solids or different liquids. Some solids look similar but can be distinguished because of their densities. The Scriptures speak of this diversity in describing different stones that were placed in the breastplate of judgment. Similarly, Revelation speaks of the foundations of the walls of the New Jerusalem being garnished with all manner of precious stones. In both of these cases there are twelve stones. In Exodus, the twelve stones refer to the twelve tribes of Israel. "And thou shalt set in it settings of stones, even four rows of stones: the first row shall be sardius, a topaz, and a carbuncle; this shall be the first row. And the second row shall be an emerald, a sapphire, and a diamond. And the third row a ligure, an agate, and an amethyst. And the fourth row a beryl, and an onyx, and a jasper: they shall be set in gold in their inclosings. And the stones shall be with the names of the children of Israel, twelve, according to their names, like the engravings of a signet; every one with his name shall they be according to the twelve tribes" (Exodus 28:17-21). "And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald; the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst" (Revelation 21:19-20). Twelve is a number used in the Scriptures to speak of the complete number of God’s people. Within that complete number are all different kinds of people. "And they sung a new song, saying, Thou art worthy to take the book, and to open the seas thereof; for thou wast slain, and hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation" (Revelation 5:9). Furthermore, Scripture speaks of the church as the body of Christ which has many members (I Corinthians 12). As we study in the Sciences, physical properties show us the diversity of things which have been created. This diversity is seen in the creation as a picture to us of the many members which make up the body of Christ.
Density has practical applications. Without substances having different densities and different physical and chemical properties, matter would look the same and would all mix together. By virtue of the different physical and chemical properties that God has created, there are different objects and creatures.
The Federation Board of the Protestant Reformed Christian Schools commissioned Joel Minderhoud to develop this Repertoire of Chemical Demonstrations
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