2. Explain what shopping was like in London during the early 1900s. How does this differ from the modern shopping experience?
-

Which two statements are true about a system? 1. a system is a group of objects analyzed as one unit. 2. energy that moves across system boundaries is conserved. 3. there’s only one way to define the boundaries of a system. 4. all systems are made by humans.

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

In which text sample are the ideas organized most logically? a. a butterfly starts its life as an egg. the egg hatches to reveal a tiny caterpillar. the caterpillar eats a lot of leaves. it grows quickly, shedding its skin as it grows. this shedding takes place four or more times in a process known as molting. the caterpillar then forms a pupa or chrysalis. inside the chrysalis, the caterpillar slowly transforms into a beautiful butterfly. b. the molting process is characteristic of caterpillars. eventually the caterpillar grows into a beautiful butterfly. the caterpillar eats a lot of leaves, growing quickly. as a result, it becomes too big for its skin, and it has to shed its skin four or more times. the caterpillar hatches from the egg laid by a butterfly. c. a tiny caterpillar hatches from the egg. the egg is the starting point of a butterfly’s life. when it becomes a caterpillar, it eats a lot of leaves. it grows quickly, shedding its skin as it grows. this shedding takes place four or more times. this process is known as molting. the caterpillar then forms a pupa or chrysalis. then the caterpillar slowly transforms into a beautiful butterfly. d. the caterpillar forms a pupa or chrysalis. inside the chrysalis, the caterpillar slowly transforms into a beautiful butterfly. but where does the caterpillar appear from? a caterpillar hatches from an egg. the egg is the starting point of a butterfly’s life. when it becomes a caterpillar, it eats a lot of leaves. it grows quickly, shedding its skin as it grows. this shedding takes place four or more times in a process known as molting.