Compare and Contrast - Informational (Grade 9)
Compare and Contrast - Informational
While the lure of outer space is a powerful one, there are a number of scientists and other experts who feel the money, effort, skill, and time spent on exploring what is waiting in the universe should be spent on exploring the planet's oceans instead. Billions of dollars in government money is devoted to space exploration. Only a small fraction of that amount is spent on finding out more about the alien environment beneath the ocean surfaces.
Why is so much more attention paid to exploring the universe than exploring the seas? Part of it can be blamed on the media. A simple tally of the number of space movies compared to the number of ocean movies - especially if you take out the ones with sharks - tells the story. The sky is easy for everyone to see and to look up and appreciate glittering stars or a cratered moon. Oceans, on the other hand, often just look like miles and miles of nothing but water. The truth is, however, that ocean exploration offers far more benefits to humans than space does. Oceans are a rich source of everything from rare earth metals to millions of yet undiscovered species. Exploring the blackness fathoms deep instead of light years away may not seem as exciting, but it may be the wisest scientific choice in the long run.
- It will end up costing as much as space exploration does.
- It may reveal information about countless new species.
- It will distract scientists from doing additional space research.
- It may end the world's search for rare-earth minerals.
- The ocean offers more potential advantages to people.
- It costs almost nothing to explore the planet's waters.
- The world wants to know more about ocean sharks.
- It will inspire more books and films about deep sea life.
- The popularity of "Star Wars" to "Star Trek" books and movies.
- The relevance of measuring in light years to ocean fathoms.
- The importance of learning about space exploration versus the ocean.
- The amount of time spent exploring versus government funding for exploration.
Both moths and butterflies are covered in soft, hair-like scales, have two sets of delicate, patterned wings, and start their lives as caterpillars that later transform inside cocoons. The biggest difference between the two is found in their antenna. While a butterfly's antennae are long, and shaped like clubs, moths' antennae have rough or jagged edges like feathers or saws.
Between the two insects, butterflies are typically larger and far more colorful. Although moths have beautiful patterns on their wings, they tend to be in muted shades of gray and brown, as opposed to the bright and vibrant oranges, blues, reds, and greens of butterflies.
Perhaps the biggest clue as to whether you are seeing a moth or butterfly is the time of day you spot it. Butterflies prefer to fly around in the bright sunshine, while moths certainly favor the dark night hours.
- Bright colors
- Soft scales
- Patterned wings
- Feathered antenna
- Moths have two set of wings.
- Moths tend to only fly at night.
- Moths begin life as a caterpillar.
- Moths have club-shaped antenna.
- Both have feathered antennae.
- Both have bright, colorful wings.
- Both have the same schedule for flying and sleeping.
- Both have a coating of soft scales like tiny hair.