7th Grade Unit 7 Benchmark Review

What is global warming?

• the steady cooling of the poles while the equator warms

• The slow melting of ice caps due to the Earth's tilt

• Fossil fuel emissions are increasing Carbon in the atmosphere, warming Earth

• Earth is warming and cooling in a cycle every 100 years

Which of the following is NOT part of the Carbon Cycle?

• Respiration

• Volcanoes

• Ocean Evaporation

• Oil Reserves

Does a large volcanic eruption release large amounts of carbon dioxide and affect global temperatures?

• Yes

• Not really

Did you know that there have been standards/regulations on fuel since the 1970s?

• Yes, I knew that there were emission standards to try and lower emissions in 1975

• No, I did not know that, but that is a long time for emissions to still be so bad!

Are Greenhouse Gasses similar to fossil fuel emissions?

• Yes, they both cause Global Warming

• Nope, they have different effects on Earth

Is this diagram accurate? What is Glucose?

• Yes, proteins

• Yes, sugars

• No, Carbon Dioxide and Oxygen should switch

• No, water should leave as evaporation

Which of the following does NOT correctly describe how ALL FOOD comes from photosynthesis in plants?

• some animals use sunlight to keep warm and gather energy

• some animals eat plant matter for energy (herbivores)

• some animals (carnivores/omnivores) eat plant-eating animals (herbivores) for energy

• energy from the sun helps make sugars

Hypothesis

• a testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon.

• a statement based on experimental measurements and observations

Evidence

• purpose is to support the Hypothesis

• purpose is to support the Research

I ONLY eat plants.

• Tertiary Consumer

• Secondary Consumer

• Primary Consumer

• Producer