NAME: ______PERIOD: _____

SCIENCE MID TERM 2015

Recommend you do this on another sheet of paper!

  1. What is the safest way to identify unknown chemicals
  2. Heat them
  3. Mix with acid
  4. Taste them
  5. Dissolve in water
  6. What is a natural underground areaswhere large quantities of water accumulate?

aquifer

  1. _biodiversity____ is a variety of organisms within an ecosystem.
  2. _biomes______are large geographical areas with similar climates and ecosystems.
  3. The downward movement of water from the land surface into soil causey by gravity is?
  4. _porosity______is the measure of the amount and size of pore space between Earth’s materials.
  5. What is an example of a type of Earth’s material with the greatest porosity?pebbles
  6. If during a lab you are uncertain about something, what should you do?Ask teacher
  7. When your lab group has completed the first part of a lab, and have empty used equipment, what would the best lab practice be to do next?Wash the equipment
  8. Which would be an example of unsafe lab practice: testing a substance by tasting it; watering a plant without wearing gloves; using a glass rod to stir liquid in a glass beaker; or detecting an odor by moving wafting?
  9. The place in which an animal lives, is its’?Habitat
  10. What living things undergo photosynthesis?Plants Only
  11. What happens to solar energy absorbed by plants during photosynthesis?Transformed into chemical energy
  12. __Species______: all organisms of the same kind that adapted to survive.
  13. Draw a diagram of photosynthesis, starting with a leaf.
  14. What type of energy is necessary to initiate the process of photosynthesis?Radiant
  15. What are the reactants for photosynthesis to occur?6H2O & 6CO2
  16. Draw a diagram of photosynthesis using the following terms: sunlight, oxygen, chloroplast, water, chemical energy, & carbon dioxide.
  17. What two very important products, does the process of photosynthesis produce, for most life forms on Earth?Glucose & Oxygen, which are essential for cell respiration in plants and animals.
  18. What consumers would receive the greatest amount of energy captured by the producers in a food chain?Primary Consumers…first level of consumers
  19. Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps plants capture energy from sunlight?Chloroplast
  20. As energy passes through a food web, some of the energy is lost as heat. How much of the energy is passed from one level to the next?10%
  21. Draw a diagram to represent the best way to show the flow of energy among organisms found in a compost bin.
  22. Which way does the arrow point in a food web? Draw and example.To where the energy is going / Grassmousesnake
  23. Draw an energy pyramid using the following: Chipmunks, Insects, Grasses, & Grizzly Bears.Grasses, Insects, chipmunks, Grizzly Bear
  24. Draw a food chain that represents the flow of energy in a living system. Use the following terms: Secondary Consumer, Tertiary Consumer, Producer, & Primary Consumer. ProducerPrimary ConsumerSecondary ConsumerTertiary Consumer
  25. Label work or no work:
  26. Container was raised 1m to a shelf-- Work
  27. Container was raised 2.5m to the top of a cabinet--Work
  28. Container was raised .5m to a table top--Work
  29. Container was too heavy to lift after four tries—No Work
  30. You bought a birdbath made of concrete. When you bought it, the salesman suggested sealing the surface with a watertight solution. Why would this suggestion be made? To avoid water seeping into the concrete, freezing, and causing the birdbath to crack.
  31. When limestone rock, in the Texas Hill Country, is exposed to carbonic acid in rainwater, it can deteriorate and weaken. What affects could this process have on the landforms of the Texas Hill Country?This would cause underground cave formations
  32. The following experiment was set up:
  33. Use a clear plastic cup filled with gravel
  34. Drain hole in the bottom
  35. Cover with coffee filter
  36. Water soaked with food coloring is poured through the filter and down into the gravel

The movement of colored water through the gravel would best model what?

Pollution of groundwater

  1. What would occur when used engine oil is poured into a pit in the ground, near a well, and water table?The oil seeps through the soil until it leaks into the groundwater
  2. When fertilizer seeps into and reaches groundwater, what effect can it have on the our drinking water? Fertilizer can cause groundwater to become undrinkable
  3. How could deforestation affect the amount of groundwater in an area? (Hint: what would less trees cause to happen?Deforestation would decrease the amount of groundwater because more surface water would runoff the deforested spot.
  4. When an area experiences a drought, humans may excessively pump groundwater out of aquifers. Circle the following effects that could happen due to this excessive pumping. Groundwater depleting, water quality decreasing, soil collapsing, the water table rising.
  1. Complete the statement based on the information in the chart. According to the U.S. Environmental Protection Agency, ground water contamination in most states most likely originates from-Fertilizer
  1. A good adaptation for living in a grassland biome, would be- hibernation, grow very high, having thick insulation, ability for plants to regrow after fire.
  2. Why would desert animals be more active at dusk and dawn---why would this adaptation be helpful?To avoid high temperatures
  3. What type of natural disaster or catastrophic event would most likely cause and environmental disturbance in a grassland biome?Fire started due to lightning
  4. How would an adaptation of a long narrow beak, in a bird, be helpful? Help them pick small insects out of bark
  5. A forest ecosystem contains a great deal of biodiversity. How would the sustainability of a forest ecosystem be affected if the biodiversity of the forest increased?The sustainability would increase because there would be more interactions between different species