Question 5 Line Geide Read the paragraph. Then answer the questions that follow. Scientists have long been fascinated by the way massive rocks move along tidal beaches in the Arctic Sea. NASA advisor and physics scientist Ralph Lorenz had read stories about how large rocks encased in ice move along tidal beaches in the Arctic Sea. He theorized that something similar might be happening in Death Valley, causing rocks as heavy as 700 pounds to glide across the sand. To test his theory, he filled a container with water, placed a rock in the water, and froze it. He placed the ice-encased rock in a tray of water with sand at the bottom and blew on the rock. It moved across the sand easily and left a visible trail in the sand. He suggested that moisture in the air collects under rocks and freezes at night when the temperature in Death Valley plummets. The ground under the rock becomes muddy, so when the winds blow, the ice on the rock makes it skid across the wet ground, leaving a trail in its wake. Using his observations of the rocks that move along the tidal beaches in the Arctic Sea, Lorenz was able to prove similar movements of rocks in Death Valley through a fairly easy experiment. 00:53:46 Hide Timer ? Read the sentence from the paragraph. He placed the ice-encased rock in a tray of water with sand at the bottom and blew on the rock. The writer wants to revise the sentence. Which revision best maintains the same overall tone of the paragraph? He dropped the ice-encased rock into a tray of water and sand and blew on it. He dumped the ice-encased rock into a tray of water and sand, and then he created wind by blowing on it. He placed the ice-encased rock into a tray of water and sand, and then he simulated wind by gently blowing on the rock until it moved. He submerged the ice-encased rock into a tray of water and sand, and then he created big wind by gently blowing the rock across the tray. Review/End Test Pause Flag Options Next Back Next