Lemonade Stand Quiz

Mia, Kayla, and Eli have all set up lemonade stands in their neighborhood. Each person started with the same amount of lemon juice and then added different amounts of sugar, as shown in the table below. Fill in the table with the total weight of each person’s lemonade.

• Mia: 210 grams, Kayla: 220 grams, Eli: 230 grams

• Mia: 200 grams, Kayla: 210 grams, Eli: 220 grams

• Mia: 220 grams, Kayla: 230 grams, Eli: 240 grams

• Mia: 230 grams, Kayla: 240 grams, Eli: 250 grams

Eli’s popsicles will taste sweeter than Mia’s popsicles or Kayla’s popsicles because there is more sugar in them.

• True

• False

Eli’s popsicles will weigh slightly more than Mia’s popsicles or Kayla’s popsicles because there is more sugar in them.

• True

• False

Eli’s, Mia’s, and Kayla’s popsicles will all be exactly the same.

• True

• False

If Laila weighs the salt and vinegar solution and the pennies after the experiment, what do you think she will find?

• The solution will weigh more and the pennies will weigh less after the experiment.

• The solution will weigh less and the pennies will weigh more after the experiment.

• The solution will weigh the same and the pennies will weigh the same after the experiment.

• The solution will weigh the same and the pennies will weigh less after the experiment.

The graph to the right shows how much the salt and vinegar solution weighed before the experiment. It also shows how much the pennies weighed before the experiment. Laila weighs the pennies after the experiment and finds that they weigh 8 grams. Complete the bar graph to show how much the pennies weighed and how much the salt & vinegar solution weighed after the experiment.

• The pennies weigh 8 grams and the salt & vinegar solution weighs 10 grams.

• The pennies weigh 8 grams and the salt & vinegar solution weighs 12 grams.

• The pennies weigh 8 grams and the salt & vinegar solution weighs 15 grams.

• The pennies weigh 8 grams and the salt & vinegar solution weighs 20 grams.

The picture above shows a sealed plastic bag filled with vinegar at the bottom. A cup of baking soda is about to mix with the vinegar. When the baking soda mixes with the vinegar, bubbles will form and the plastic bag will start to expand. Why does the bag expand?

• The reaction produces a gas that fills the bag.

• The bag is heated and expands.

• The vinegar evaporates and fills the bag.

• The baking soda melts and fills the bag.

If two cups of baking soda are added to the vinegar in the bag, describe how that would happen inside the bag.

Emi drops a cup of baking soda into a glass container that has vinegar at the bottom of it. Then, she quickly puts a balloon on top of the container. What do you predict will happen to the balloon?

• The balloon will get bigger because it will become filled with solid (baking soda) particles that are too small to be seen.

• The balloon will get bigger because it will become filled with liquid (vinegar) particles that are too small to be seen.

• The balloon will get bigger because it will become filled with gas particles that are too small to be seen.

• The balloon will stay the same because it will not become filled with anything.

If Priya only looks at the results of the Vinegar Experiment, what can she figure out?

• Either B or C is the baking soda. A must be the salt.

• Either A or B is the baking soda. C must be the salt.

• Either A or C is the baking soda. B must be the salt.

• Priya can’t figure anything out if she only looks at the Vinegar Experiment.