Essay scientific method

1136 WordsSep 8, 20135 Pages
LAB 1 – THE SCIENTIFIC METHOD *Adapted from LabPaq CK-GCC Purpose: The purpose of this experiment is to learn about and use the Scientific Method. The discussion of physical properties such as density, color, texture, smell, and solubility will take place. Observations and Experimental Data: Table 1: Making Observations Procedure Observation A. Torn paper Vertical tear: easier to tear, more visible fibers, more jagged edges and uneven tear. Horizontal tear: harder to tear, less fibers visible, less jagged edges and more of a straight line tear. B. Appearance of rock salt crystals Before crushing: Jagged edges, very few smooth surfaces, size was 9mm x 6mm, cubic crystal shape with ridge like features. Color was…show more content…
After about two to three minutes the re-observation showed that some of the crystal has completely been absorbed by water. 3. In light of your previous response, what can you conclude about salt? In light of my previous response I can conclude that salt is formed from the evaporation of water and that a chemical reaction occurs. C. Do all the grains of sand look like they are made out of the same material? All the grains of sand do not look like they are made out of the same material. 1. Propose a hypothesis to explain your observations on the appearance of sand. If I add water to all the grains of sand equally the shape of the grains will change. 2. Describe what was initially observed when several drops of water were added to several granules of sand initially, and in 2–3 minutes? When drops of water were initially added to sand the water didn’t move of absorb the sand. After about two to three minutes the sand shifted to the outer areas of the water capsule and remained unchanged. 3. In light of your previous response, what can you conclude about sand? That sand even with its different appearances were made from the same particles and water had no effect on their physical properties. D. Water and oil act differently on the small–scale reaction surface. Propose a

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