Today in class, we did a series of experiments. We tested how colored sugar reacted to oil, water, and white vinegar. The liquids were the solvent and the sugar was the solute. First, we had to make the colored sugar by mixing sugar and pink food coloring.
Then, we tested the sugar with the oil. Our hypothesis was: If we mix 1 tsb of sugar with oil, then the sugar will gradually dissolve and color the oil. Our hypothesis was denied. We noticed that there were tiny particles floating and there is a thin layer of pink at the top. We also noted that the sugar was NOT coloring the oil and that most of the sugar was at the bottom.
Next, we tested the water and sugar. Our hypothesis was: If we mix 1 tsb of sugar with water, then the sugar will dissolve and color the water. Our hypothesis was confirmed. The sugar DID color the water and dissolved rapidly. It took a little bit of time, but by the time we came back from lunch, (1hr), it was all dissolved.
Finally, we tested the sugar with white vinegar. Our hypothesis was: If we mix 1 tsb of sugar with vinegar, then the sugar will color the vinegar and partially dissolve. Our hypothesis was confirmed. The sugar did color the vinegar and dissolved rapidly, although not all the way.
Overall, I learned so much from these experiments and had so much fun getting messy!
In class, we did science centers with our science groups. The first activity we did was called Create It! We had to sort beads by color and we observed the properties of the beads. We saw that the beads were hard, small, colored and square. Then we had to make a mixture out of the beads. We observed whether the properties of the beads changed or stayed the same. The properties of the beads did not change, but instead of one color, there were many.
Next, we did Sort It!. In Sort It!, we sorted mixtures, solutions and compounds into seperate piles. When we were done we had sand and water, sand and iron filing and salad in the mixture column. We put soda, sugar and water, and air into the solutions column and we put table salt baking soda and water into the compound column.
Next, we did Match It! In Match It!, we matched words and definitions. Here is what we learned: Physical Properties: a characteristic of matter, Mixture: a combination of 2 or more substances, Solution: a type of mixture in which one substance dissolves in another, Solvent: the substance that dissolves in another substance to make a solution, Solute:the substance in a solution that there is more of, and Dissolve: to break down into smaller pieces until it is invisible.\
Next we did Explain It!, In Explain It!, we made observations on the recipe of lemonade and then we wrote what we learned. I wrote that the hot water is the solvent, the sugar was the solute and if you add the cold water with the lemon to the hot water and the sugar, it’s a solution. I learned that you can mix a solvent and solute together add another liquid and you would still get a solution. I wonder if you didn’t mix the sugar and hot water, would the sugar still dissolve? If so, how long would it take?
Overall I learned so much from these activities and thought they were a lot of fun!