Virtual Lab Reports

Sour Food Experiment

· Question: What atoms are in sour foods?

· Hypothesis: Foods are sour when they have a highconcentration of loose hydrogen atoms.

· Procedures: Step 1: Make a numbered cup for each food bottle. Step 2: Add 5 drops of each food to itsnumbered cup. Step 3: Add 1 drop of dye to each cup. Step 4: Put cups in order, from high concentration tolow concentration of loose hydrogen atoms.

· Data: Each numbered cup had a different color when the dye was added.
Cup #1 was color green and contained orange juice.
Cup #2 was color dark green and contained milk.
Cup #3 was color light pink and contained lemonjuice.
Cup #4 was color yellow and contained vinegar.
Cup #5 was color blue and contained water.

· Results: Indicating from the most sour to the least sour food. Cup #3 lemonjuice. Followed by Cup #4 vinegar, Cup#1 orange juice, Cup #2 milk, and the last Cup #5 with water.

· Explanation: This hypothese is true. From the indication of the chemistry lab the most sour food which contained the lemon juice had the highest concentration of loose hydrogen atoms. Whereas, the least sour food which contained water, had the lowest concentration of loose hydrogen atoms.

Questions for thoughts

1.) What are acids and bases?· Acids are compounds that include hydrogen and can dissolve in water to release hydrogen ions into solution. Bases are a sodium hydroxide.

2.) What is a molecule?· Molecules are made up of tiny particles that make up everything around us.

3.) Why is pH important in the ocean?· Because it is saturated with an important organic molecule for organisms like corals, crustaceans, and mollusks called calcium carbonate.

4.) What is an ion?· An atom or group of atoms that is electronically charged.

Holes in Bread Experiment

· Hypothesis: I think the holes in bread are formed when dryingredients are mixed with wet ingredients.

· Procedures: Step 1: Add three scoops of yeast to the tube. Step 2: Add three scoops of sugar to the tube. Step 3: Fill the tube with three fourths full with warm water. Step 4: Use a stick to stir the yeast and sugar into the water. Keep stirring until the water is the same color as the yeast. Step 5: Give it some time because the reaction in the tube may take time. Step 6: Shine a flashlight on the side of the tube.

· Data: When the yeast and sugar was mixed with the warm water, the water turned to be the same color as the yeast.

· Results: After the mixture of the yeast and sugar, together with the warm water, there were tiny bubbles streaming up the side of the tube.

· Explanation: Yeast is a living thing that feeds on the sugarmolecules. It breaks the sugar molecules apart into new molecules. The carbondioxide gas molecules make tiny bubbles, which was seen in the tube.

Questions for thoughts

1.) What gas causes the bubbles?· The carbon dioxide gas molecules causes the tiny bubbles.

2.) How was the gas produced?· The feeding of the yeast onto the sugar molecules, created the breaking of the sugar molecules and new molecules, thereofe carbon dioxide gas molecule were produced.

3.) How does CO2 get in the ocean?When there is very little sink. Sink is what scoops up carbon dioxide from the atmosphere. Therefore without sink, carbon dioxide will continue to get into the ocean.