The correct answer is C. Passage 1 explains a cause and effect, as it describes how a soap bubble floats and the relationship between the density of the air inside and outside the bubble. Passage 2 presents a solution to a problem by describing how to make longer-lasting bubbles by adding corn syrup to the soap and water mixture.
Have you ever wondered what makes a soap bubble float? When you blow air into a mixture of soap and water, a thin, stretchy skin forms. The skin traps the air inside and makes a bubble. The air inside of the bubble is less dense than the air outside. The denser air outside pushes up on the bubble, so it floats away. When the bubble lands on something dry or sharp, it pops and the trapped air is let out.
Passage 2:
Making bubbles is a quick and fun activity. But sometimes the bubbles don't last very long before popping. To make longer-lasting bubbles, just add ¼ cup of corn syrup to a mixture of soap and water. Corn syrup thickens the skins of bubbles, so they don't pop as easily. A stronger skin also traps more air inside of the bubble. This increases the size of the bubbles. Place a bubble wand into the mixture, and gently blow into the wand. Now you can enjoy larger, tougher bubbles!
Compare how the two passages are organized.
A.Passage 1 presents a problem and its solution; Passage 2 lists events in chronological order.
B.Passage 1 discusses similarities and differences; Passage 2 explains a cause and effect.
C.Passage 1 explains a cause and effect; Passage 2 presents a solution to a problem.
1 answer