5 37 main idea detail elimination grade 5 worksheet Worksheet

A conclusion should restate the main point in a fresh way without repeating every sentence. It can briefly connect key reasons so the reader remembers the most important ideas. Adding a random new topic at the end can confuse readers and weaken the overall message. An alarm clock can be set to ring at different times.

In an ecosystem, some species have an effect that is larger than their numbers might suggest. These are often called keystone species because other organisms depend on the changes they create. For example, a beaver’s dam can form a pond that becomes habitat for fish, birds, and amphibians. If the keystone species disappears, the ecosystem may change quickly and many other species can decline. Scientists study these relationships to decide which habitats need protection most urgently. Some people build model ponds in a science fair project.

When researching, students can take the main idea from each source and then look for connections. If two sources agree, that can strengthen confidence in a fact, especially if they are independent. If sources disagree, students can check evidence, dates, and possible bias to decide what is most reliable. Sunrises can look red or orange because light scatters in the atmosphere.