How To Make Rainbow In A Jar
. Line up five glasses. Add 1 tablespoon (15 g) of sugar to the first glass, 2 tablespoons (30 g) of sugar to the second glass, 3 tablespoons of sugar (45 g) to the third glass, and 4 tablespoons of sugar (60 g) to the fourth glass.
The fifth glass remains empty. Add 3 tablespoons (45 ml) of water to each of the first 4 glasses. Stir each solution. If the sugar does not dissolve in any of the four glasses, then add one more tablespoon (15 ml) of water to each of the four glasses.
Add 2-3 drops of red food coloring to the, yellow food coloring to the second glass, green food coloring to the third glass, and blue food coloring to the fourth glass. Stir each solution. Now let's make the different density solutions. Fill the last glass about one-fourth full of the blue sugar solution. Carefully layer some green sugar solution above the blue liquid. Do this by putting a spoon in the glass, just above the blue layer, and pouring the green solution slowly over the back of the spoon. If you do this right, you won't disturb the blue solution much at all.
Add green solution until the glass is about half full. The sugar solutions are, or mixable, so the colors will bleed into each other and eventually mix. If you stir the rainbow, what will happen? Because this is made with different concentrations of the same chemical (sugar or sucrose), stirring would mix the solution. Twilight hindi dubbed full movie online. It would not un-mix like you would see with oil and water. Try to avoid using gel food coloring. It is difficult to mix the gels into the solution.
If your sugar won't dissolve, an alternative to adding more water is to microwave the solutions for about 30 seconds at a time until the sugar dissolves. If you heat the water, use care to avoid burns. If you want to make layers you can drink, try substituting unsweetened soft drink mix for the food coloring, or four flavors of a sweetened mix for the sugar plus coloring. Let heated solutions cool before pouring them. You'll avoid burns, plus the liquid will thicken as it cools so the layers won't mix as easily.
Use a narrow container rather than a wide one to see the colors the best.
I love incorporating easy science experiments into the classroom as often as I can. I thought this rainbow in a jar science experiment was perfect for March. To make this rainbow in a jar, the students are exploring density by layering sugar water to make a rainbow.
How To Make A Rainbow In A Jar Science Project
The materials are all things you most likely already have on hand. Materials Approx. 2 cups of warm tap water 1/2 cup measuring cup 1 Tablespoon measuring spoon 4 small jars of glasses Approx. 1 1/2 cups of granulated white sugar Red, blue, yellow and green food coloring Tall thin glass or test tube.
I used an old Starbucks bottle Straw 4 popsicle sticks Microwave Experiment steps Step 1: Measure a 1/2 cup of warm tap water into the 4 jars. Step 2: Add 2 drops of food coloring to each of the 4 jars. Step 3: To the jar of red water, add 2 tablespoons of sugar. To the jar of yellow, add 4 tablespoons of sugar. To the jar of green water, add 6 tablespoons of sugar.
How To Make Rainbow In A Bottle
To the jar of blue water, add 8 tablespoons of sugar. Step 4: Stir each of the jars to dissolve the sugar. If your water is not warm enough to dissolve the sugar, put the jar in the microwave for 30 seconds at a time, stirring in between until the sugar is dissolved. The students can already see at this point that by dissolving increasing amounts of sugar, you’re increasing the density of the sugar water solutions. They can easily see that the jars all started the same and now the blue looks a lot fuller than the red.
Step 5:聽Pour about an inch of the blue water into the bottom of your glass or test tube. Step 6: Use your straw to gently drip the green water on top of the blue layer. It works best to place the straw to the side of the glass just above the blue layer. You want to add the layers to the glass slowly and carefully, otherwise they’ll mix together resulting in a muddled rainbow. Step 7: Add the yellow layer next using the same method and last the red layer. Stand back and admire your beautiful rainbow! I hope you students love making the rainbow and learning about density in a fun way!
See you next time! Jenette Save Save Save Save Save Save Save Save Save Save Save Save Save Save.