![]() ![]() When an acid (the lemon juice) was added to the water to cook the broccoli a chemical reaction occurred between the acid and the chlorophyll, that chemical reaction caused the broccoli to turn that yucky olive green color. Chlorophyll is what gives vegetables and grass their green color. Green vegetables are rich in chlorophyll. The broccoli cooked in the water will stay it’s natural green color. The broccoli cooked in the lemon juice (the acid) will be a yucky olive green color. The broccoli cooked in the baking soda (the base) will be the mushiest and a bright green color. Step 5: Watch what happens and record your results. Step 4: Let the broccoli cook for 7 minutes. Step 3: Pour 1 tablespoon of lemon juice in the first saucepan, Pour 1 teaspoon of baking soda in the second saucepan, pour nothing in the third saucepan. Step 2: Pour 1/2 cup of the frozen broccoli florets in each of the saucepans. Step 1: Pour 1 cup of water in each of the saucepans. See also How to Make a Cloud Easy Science Project for KidsĪs with any project that requires a stove, adult supervision is required. In the bowl with only water now bubbling or fizzing occurred, why? This is because water is neither a base or and acid. The fizzing and bubbles that you see are the carbon dioxide begin released. When the baking soda (a base) combined with the vinegar and the orange juice (the acids) a chemical reaction occurred and a new substance was created carbon dioxide. The bowls with the vinegar and orange juice should have started to fizz and became bubbly. ![]() What happened when you added the basking soda (base) to each of the bowls? Step 3: Watch what happens and record your results. Step 2: Pour 1 teaspoon of baking soda into each of the bowls and mix each one with a separate spoon. Step 1: Pour the water in the first bowl, vinegar in the second bowl and orange juice in the third bowl. What do you think will happen when you mix and acid (vinegar or orange juice) with a base (baking soda). What kind of chemical reaction takes place when you mix and acid with a base? Hypothesis You will be using vinegar and orange juices as acids and baking soda as a base. In this experiment you will find out what happens when you mix and acid with a base. The stronger the acid, the stronger color the chemical indicator (red cabbage juice) will turn. You should have noticed that the color of the cabbage juice changed. In the first jar you added vinegar which is an acid. A chemical indicator is a substance that turns color when other substances are present. The red cabbage juice is a natural PH chemical indicator. What color did the liquids in the jar turn? Research and Conclusion Step 4: Watch what happens and record your results. Step 3: Add 1 tablespoon of vinegar to the first jar, add 1 tablespoon of baking soda to the second jar and add 1 tablespoon of distilled water to the third jar. Step 2: Put 2 tablespoons of red cabbage juice into each of the three glass jars. Step 1: Open the can of red cabbage, using the strainer/colander drain the cabbage juice over the bowl. How do you think you can tell the difference between an acid and a base? Do you think an acid acts differently from a base? Let’s conduct this experiment to find out. Substances with a PH of 0-6 are considered acidic and substances of 8-14 are considered alkaline or basic (bases). How can you tell if something is an acid or a base? The PH scale the scale that determines is something is an acid or a base. Neutral substances will make it turn purple. When acid is added to it it turns a red color when a base is added it will turn a green color. The juice from the can of red cabbage is a natural PH indicator and will change color according to acidy levels.Ĭabbage contains a pigment molecule called anthocyanin also called flavin. Always acid is added to water, and not water into an acid, as strong acids would result in the release of energy as the reaction will be highly exothermic.In this experiment you will use the juice from a can of red cabbage to determine if vinegar and baking soda are acids or bases. Note:While mixing acid and water, in case any strong acid is mixed, then utmost care has to be taken in the order of pouring the acid and water. When any acid is mixed with water, the following reaction occurs, ![]() The extent of their dissociation or liberation of these ions makes any acid or base strong or weak. ![]() Acids have a lower pH range while bases have a pH range near 14.Ĭomplete step-by-step answer:Acids have the ability to dissociate into positive hydrogen ions, while bases can dissociate into negative hydroxide ions. Hint:Acids are compounds that have the ability to liberate hydrogen ions in aqueous solutions, while bases have the capability to liberate hydroxide ions. ![]()
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