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This printable supports Common Core ELA Standards ELA-Literacy.RI.9-10.1 and ELA-Literacy.RI.9-10.3

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Compare and Contrast Science (Grade 9)

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Compare and Contrast Science

1. 
Deep inside many of the world’s rainforests live two small colorful creatures. Both of them are mere inches long, and come decorated in bright shades of green, yellow, blue, orange, and red. Often referred to as the “gems of the rainforest,” these frogs live up in the trees, often spending almost all of their lives in the high green canopy sleeping on leaves during the day, and searching for insects at night for an evening snack.

One type of frog is known as the poison dart tree frog. As harmless as it looks, it carries an invisible weapon. Its skin is coated in a thin layer of toxic poison, so one bite or lick, and either the predator will die, or run off, determined never to try that meal again. Natives in the rainforest capture these little frogs and rub the ends of their hunting darts across their skin, creating a lethal weapon.

The other type of frog is the red-eyed tree frog. It looks a great deal like the poison dart frog, but the way it protects itself from predators is much different. Its back is a shade of green that allows it to merge with the rainforest around it, and when it is sleeping, it pulls its legs underneath it and closes its eyes. When a predator comes too close, the frog throws out its brightly colored legs in shades of bright blue, green, orange and yellow, and opens its bright red eyes as big as it can. The colors often scare away any predator, at least long enough for the little frog to leap to safety.
A. 
What factor do these two types of frogs have in common?
  1. They are both dangerous to predators.
  2. They both help the local natives.
  3. They both are very small and colorful.
  4. They both have startling eyes.
B. 
What is the primary difference between the poison dart frog and the red-eyed tree frog?
  1. How they protect themselves
  2. Where they usually live
  3. What kind of food they eat
  4. When they wake up to hunt
C. 
Why are both of these frogs most likely referred to as “gems of the rainforest”?
  1. Their size
  2. Their location
  3. Their eyees
  4. Their colors
D. 
While most frogs tend to live in water or on the ground, these frogs both spend most of their lives in the trees.
  1. True
  2. False
E. 
A poison dart frog uses its natural toxin to scare away predators, while a red-eyed tree frog relies on its                    for protections.
2. 
Although the terms “astronomy” and “astrology” are sometimes used as synonyms, their actual meanings are quite different. They share the same root word, “astro”, which means stars. That is about where the similarity ends, however.

Astronomy is the science of studying the earth’s atmosphere and the universe. This field of study includes examining and exploring everything from planets, stars and solar systems to asteroids, galaxies, and black holes. Astronomers research the properties of these celestial objects. They analyze how they relate and impact each other.

On the other hand, astrology is not a study. Instead, it is a belief. Astrologists study the same celestial objects as astronomers, but they do so in the belief that the positions of these stars and planets can directly impact what happens to people on earth. The horoscopes published in newspapers are based on the ideas of astrologists. They often explain how celestial objects affect people, based on their astrological or birth sign.
A. 
What two things is this passage comparing?
  1. The impact of stars and planets on people’s lives.
  2. A field of science and a study of religion.
  3. The use of the Greek root word “astro” in science.
  4. A scientific study and a personal belief system.
B. 
What is the difference between an astronomer and an astrologist?
  1. Astronomers study the stars while astrologists study planets.
  2. Astronomers believe stars affect people while astrologists believe they cannot.
  3. Astronomers focus on research while astrologists focus on interpretation.
  4. Astronomers examine the positions of objects while astrologists examine their sizes.
C. 
Which statement about astronomy is the most accurate?
  1. It helps people understand more about the universe.
  2. It helps people understand the impact of the stars on their lives.
  3. It helps people understand the meaning of astrological signs.
  4. It helps people understand more about how the planet operates.
D. 
Like astronomy, astrology is based solely on known scientific principles.
  1. True
  2. False
E. 
According to astrology, the course of a person’s life is largely determined by                                                 .

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