Answer:
All of these choices are correct
Explanation:
Answer: third step, developing a hypothesis
Explanation: With respect to the scientific method, Macy is working on the <u><em>third step</em></u> of the method, namely, developing a <em><u>hypothesis</u></em>. The scientific method is a series of steps that investigators use to explore observations, to find cause and effect relationships, and answer a question. The six steps of the scientific method are observation, background research, developing a hypothesis, test it with experimentation, results of the experiment, and conclusion. In the first step, Macy has found interesting topics. She has done background research reading about these topics. Now she has to develop a hypothesis.
Answer:
Birds’ feathers are designed to be light but very strong, flexible but very tough. Although it looks like feathers grow all over a bird, they actually grow in specific areas called feather tracks. In between the feather tracks are down feathers. This keeps the body weight down.
Feathers are made of a tough and flexible material called keratin. The spine down the middle, called the shaft, is hollow. The vanes are on the two halves of the feather. They are made of thousands of branches called barbs. Because there are many spaces between these barbs, a feather has as much air as matter.
Explanation:
Mnemonic devices are a type of literary device which helps you remember certain things. Mnemonic devices can be anything from acronyms, to phrases, short poems, etc. Like if you wanted to remember the order of taxonomy, Kingdom, Phylum, Class, Order, Family, Genus and Species, a mnemonic device would be something like:
Kids Prefer Chess Over Fried Green Spinach.
Hope this helped!
-Trumpular :)
