Four test tubes with 20ML of water and cut flowers were set up. Three of the test tubes had food coloring added. You observe the flowers that were placed in the test tubes for the following five days. You record your observations each day at 10:00am. On the fifth day, the flowers in the colored test tubes began to turn the color of the liquid in which they were placed. You hypothesis was: IF cut flowers are placed in colored water, THEN the flower petals will absorb that color throughout the petals. Experimental Design In this experiment, the dependent variable was: O The color of the water O 10:00am O The test tube without food coloring O The ending color of the flowers 27 28 29 30 31 32 33
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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