DSWO WEEK 5 2016
DSWO Week 5 2018
9-17 Life - Nutrition - cause/effect
What's the best food to eat before a test or an exam?
9-18 Life - Disease - cause/effect
Why do you think some elderly people experience loss of memory?
9-19 Physical - Meteorology - cause/effect
How does a rainbow form?
9-20 Life – Biology – observing
As humans age, their faces get wrinkled, and their hair thins or turns gray. How does an animal’s appearance change as it gets older?
9-17 The night before a big test, have a bedtime snack that's high in carbohydrates, such as a muffin or toast and milk. Carbohydrates will help you get a good night's rest. A high-protein breakfast on the morning of the test will help keep you clear-headed so that you'll be able to remember what you studied.
9-18 Many people in their 70's and 80's suffer from Alzheimer's disease, which causes severe confusion and loss of memory. This disease is linked to age: 5% of people over the 65 have the disease, and 50% of those over 85 have it. No one knows yet what causes the disease, but it makes brain cells die causing the brain to shrink. It also tangles up neurons, cells in the brain that conduct electrochemical impulses.
9-19 A rainbow is created when drops of moisture in the air separate sunlight into colors. The drops of moisture act like prisms, splitting the light into a spectrum of colors - red, orange, yellow, green, blue, violet. The light is refracted, or bent, by the water drops. The amount of refraction for each color is always the same, so the colors always appear in the same order. Red always refracts the most light, and violet always refracts the least. Although a rainbow may appear to exist at a specific point in space, it does not. If you could reach the end, middle, or top of the rainbow, you would find only white light , air and moisture.
9-20 Some animals, such as whales, elephants, crocodiles, and fish, grow throughout their lives. These animals show their age by their increased size. Male deer, elk, and moose grow bigger antlers as they age. When they are very old, their antlers start to shrink. Some types of fish and reptiles have growth rings on their scales, just as trees have rings.