Lily investigates which objects are attracted by a magnet. She tests a paper clip, a crayon, and a nail. She holds a magnet two centimeters away from the object being tested. Each time she tests an item, she uses a different magnet. In what way did she make a mistake setting up her investigation? She should have tested a total of 10 items.

She should have used the same magnet in each trial.

She should have tested only one item in her investigation.

She should have held the magnet a centimeter away from each item.

Rank the following from most to least devasting: ordovician,permaian,cretaceous, pleistocene

Morei would really appreciate it. his eyes snapped open. a musty smell flooded his senses. the room was lowly lit, curved with smooth light gray walls. the floor was clear black tiled. he stood up, surprised to see no door, but only a trap door on the ceiling that blended in with the walls. the room was unfurnished, which struck him as strange. as you write and revise, ask yourself these questions: 1. do all of the sentences in this paragraph belong here? (unity) 2. are all of the sentences in this paragraph in the right place? (coherence-- a method of development) 3. are all of the sentences in this paragraph smoothly connected together into a whole paragraph? (coherence--use of transitional devices) once you've made certain that your paragraphs are both unified and coherent, edit your work for problems in grammar and mechanics before submitting it to your teacher.

For 50 pointsfredrika's science teacher asked her to bring in three abiotic items from her backyard ecosystem. which of the following groups of items should she bring? a. a lightning bug, a plug of grass, and a wormb. a smooth rock, some red dirt, and an empty bird's nestc. a ladybug, a spider, and some water from a mud puddled. a caterpillar, a pine cone, and a piece of a robin's egg