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MTTC Elementary Education – SCIENCE with correct answers 2023 passed!
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MTTC Elementary Education – SCIENCE with correct answers 2023 passed!A fourth-grade teacher is assessing students' use of the inquiry process during a unit on electricity and magnetism. Which of the following assessments would be most effective for this purpose? A. observing the students and t...

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  • March 3, 2023
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  • 2022/2023
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  • mttc elementary education – science with correct answers 2023 passed
  • a fourth grade teacher is assessing students use of the inquiry process during a unit on electricity and magnetism which of t

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MTTC Elementary Education – SCIENCE with correct answers 2023 passed!
A fourth-grade teacher is assessing students' use of the inquiry process during a unit on
electricity and magnetism. Which of the following assessments would be most effective for this purpose?
A. observing the students and taking notes while they are engaged in investigations
B. having the students answer open-response questions at the end of the unit
C. filling in a K-W-L chart with the students at the beginning and the end of the unit
D. giving the students a multiple-choice test after every investigation and experiment - correct answer A
A third-grade teacher is considering using an activity that she found on the Internet for her science class. However, when she looks up information for the materials used in the
activity, she finds that one material is labeled "caustic." It would be wise for the teacher not to use this activity because caustic materials can:
A. cause a severe allergic reaction in individuals who are genetically susceptible
B. rapidly combust if they are exposed to heat or a spark
C. cause chemical burns if they come into contact with the skin or the eyes
D. emit toxic vapors that affect the individual's nervous system if inhaled - correct answer C
A researcher is trying to determine why hemlock trees in a certain area are dying in large numbers while other species of trees are unaffected. Which of the following is a testable hypothesis that could help determine the cause of the hemlocks' decline in the area?
A. The ability of hemlocks to compete with other trees that make up the forest cover in the area has declined over time.
B. A pest that infests hemlock trees but does not attack other tree species has recently spread into the area from forests outside the area.
C. The relationship between hemlock trees and other organisms that make up the biotic community in the area has changed over time D. Global climate change has led to changes in the ecology of the area that are affecting the continued survival of hemlock trees. - correct answer B
Which of the following would be the most effective way to test the hypothesis below using plants that are susceptible to aphid infestations?
Hypothesis: Aphids are more likely to attack plants that are experiencing environmental stress than plants that are growing in a less stressful environment. A. Place 10 pairs of pots containing the plants at random locations in the garden. Water one pot in each pair adequately and the other pot only when the plant is beginning to wilt. Count and compare the number of aphids that attack each plant.
B. Measure the height of 20 of the plants growing in the wild. Count the number of aphids that are present on each plant and determine if more aphids are found on shorter plants than taller plants. C. Plant 10 of the plants in an area of the garden that has full sun, good soil, and adequate moisture. Plant 10 more plans in another area that is shady, dry, and has poor
soil. Count and compare the number of aphids that attack each plant.
D. Locate 20 of the plants that are growing in the wild. Place 10 aphids on each plant. Return in several weeks and count the number of aphids that are present on each plant.
Compare the physical characteristics of each plant. - correct answer A
A scientist would need both a graduated cylinder partially filled with water and an electronic scale to determine the:
A. mass of a rock sample
B. surface area of a flight feather
C. volume of a plant oil sample
D. density of a bone - correct answer D
The headline in a newsletter says "Common Garden Herb Fights Cancer." The article goes on to say that a study showed that 3000 subscribers to a health magazine who regularly used a common herb to flavor their dishes had 30% less stomach cancer than the general population. Which of the following best explains why the article in the newsletter is misleading?
A. The study only looked at the incidence of stomach cancer in the study group and not other types of cancer, such as lung cancer
B. The use of the herb was not limited to the individuals in the study group, but was likely common in the general population
C. The sample size was too small to allow a statistical analysis of the correlation between the use of the herb and the lower incidence of cancer
D. The individuals in the study group may have shared some other factor that lowered their risk of stomach cancer - correct answer D
Which of the following is the primary environmental problem associated with using nuclear power to generate electricity?
A. emission of greenhouse gases that contribute to global warming
B. the production of hazardous waste that requires long-term storage
C. release of airborne pollutants that cause acid rain
D. the discharge of heavy metals into waterways - correct answer B

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