2.2. We know that animals and humans cannot drink salt water for survival, but the majority of the water evaporated into the water cycle comes from the ocean which is salt water. Why is it possible for animals and humans to drink rain? A. The condensationprocess turns the salt into a compound our bodies can absorb. B. The salt disappears into the atmosphere C. The process of percolation removes the salt from the water vapor in the atmosphere. D. The salt in the ocean does not evaporate with the water from the ocean. Only pure water vapor enters the atmosphere.

3. What are the three states of water (states of matter) on Earth? A. Groundwater, lakes, and clouds B. Liquid water, frozen water, and water vapor C. Gas, steam, and vapor D. Groundwater, oceans, and ice

4. When waterchanges from a liquid to a gas it is called ________________. A. Condensation B. Eutrophication C. Precipitation D. Evaporation

5. What is the process of water movement through a plant and evaporation directly into the atmosphere from the plant called? A. Qualification B.Precipitation C.Sublimation D.Transpiration

6. What is the energy source of the water cycle? A. Humans B. The Earth’s Magnetic Field C. Sugar D. The Sun

Use the picture below to answer the following questions What process is happening at stage 3? A. Evaporation B. Condensation C. Precipitation D. Runoff and ground water 8.8. What process is missing from the diagram? A. Precipitation B. Runoff C. Transpiration D. Complication

9.9. What are thefour types of precipitation? 10. Clouds are the most obvious type of condensation. List at least one other form of condensation that happens in nature. Hint: There were three others mentioned in class!

Bonus: This doesn’t count against you, so take a chance! 1. What is it called when solid water (snow or ice) changes directly into water vapor without melting? 2. What is it called when water soaks into the ground and is filtered by the soil before it accumulates in an underground reservoir?

1. What process is happening at point #1 in the carbon cycle? A.Animals are releasing carbon dioxide through respiration. B.Transpiration is releasing carbon dioxide. C.Dead organisms are turning into fossil fuels. D.Condensation is releasing carbon dioxide. 2. What process is happening in the carbon cycle at point #2? A. Animals are releasing carbon dioxide through respiration B. Oxygen is being released by plants for animals to breathe. C.Transpiration is releasing carbon dioxide. D.Burning of fossil fuels is releasing carbon dioxide.

3. Many types of plants grow in a forest ecosystem. How do plants affect the air that forest animals breathe? A. Plants use oxygen from the air to make food. B. Plants release pollution into the air. C. Plants release energy from the sun into the air. D. Plants take in carbon dioxide and release oxygen into the air.

4. What do humans produce from the respiration process? A. Sugar and oxygen B. Water, carbon dioxide, and sugar C. Water, carbon dioxide, and energy D. Oxygen, carbon dioxide, and energy

5. How do photosynthesizing plants affect the carbon cycle? A. By creating more carbon atoms B. By reducing the amount of carbon in the soil and reducing soil fertility C. By absorbing carbon dioxide from the atmosphere and lowering atmospheric levels of carbon D. None of the above; plants do not affect the carbon cycle

6. What does a plant need to produce sugar (carbohydrates) and oxygen during photosynthesis? A. Water B. Sunlight (Energy) C. Carbon Dioxide D. All of the above

7.7. Whatis happening in the attached diagram of the greenhouse effect at the position indicated with an arrow? A. Sunlight is being bounced around by the clouds. B. Greenhouse gases in the atmosphere are destroying the sunlight. C. Sunlight is being trapped by the Earth’s atmosphere. D. Sunlight is being sent to France.

8. The picture below shows the stages of development of an insect. Which observation best supports the conclusion that this insect undergoesincomplete metamorphosis? A. The insect changes color when it becomes an adult. B. The first stage of the insect’s development is an egg. C. The insect undergoes more than four stages in its development D. The insect has similar body parts throughout its development

9. What happens when an organism molts? A. The organism is forming a chrysalis. B. The organism is shedding its exoskeleton and making a new one to allow for growth. C. The organism is traveling from one part of an ecosystem to another. D. The organism is eating continuously to prepare for the pupa phase.

10. Which list choice below shows the stages of Complete Metamorphosis in order? A. Egg, larva, pupa, adult B. Egg, pupa, larva, adult C. Egg, nymph, adult D. Egg, nymph, pupa, adult

11. At which stage of metamorphosis do insects eat, and eat, and eat, and eat, to prepare for the next stage of development? A.Pupa B.Adolescence C.Nymph D.Larva

Bonus: This doesn’t count against you, so take a chance! 12. Some scientists believe that human activities may be causing an increase in carbon dioxide levels in the atmosphere so much that is endangering our planet (increase in the greenhouse effect). What are some practices of humans that could be contributing to this problem.

Throw Back Questions: 1. The independent variable in an experiment is the part of the experiment that….. A. the investigator measures. B. is the result of the variable that is being changed. C. is the result of the investigator forming an opinion. D. is changed (manipulated) by the investigator. 2. Which of the following statements indicates a part of the observations and results step of the scientific method when conducting an experiment on whether skittles dissolve faster in vinegar or water? A. Looking up what skittles are made of online. B. Creating a chart of the dissolving times recorded during the experiment. C. Listing how much water, and vinegar are needed for your test. D. Providing evidence on whether or not your hypothesis was supported.