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Nature Of Science #1
Test Description: Review for Mississippi Objectives 8.1a-h
Instructions: Answer all questions to get your test result.
1) Trina wanted to find out which of her rubber balls can bounce the highest. She dropped the first ball on the cement sidewalk, and the second ball on the grass. How could she improve her experiment?
A
dropping the second ball from a higher height
B
bounce the ball on the grass two times
C
measuring the time it takes for each ball to reach its maximum height.
D
bounce both balls on one of the surfaces
2) Jeremiah has been studying the experiments performed by Gregor Mendel in his study of inheritance patterns. He decides that he would like to test the inheritance patterns of tall and short pea plants. Which statement should be his hypothesis?
A
pollen from the flowers of tall plants are used to fertilize the flowers of short plants
B
if a purebred tall plant is crossed with a purebred short plant, all the offspring will be tall
C
results of previous studies on pea plants have been inconclusive
D
pea plantsare commonly grown in many gardens
3) Which of the following statements is a example of a correctly written, testable hypothesis?
A
If water contains salt, then it will be easier to swim in than fresh water.
B
Exercising for five minutes will increase my heart rate.
C
Does handling toads cause warts?
D
If a truck is heavily loaded, then it will use more gasoline than an empty truck.
4) You have a dark-colord piece of cloth and a light-colored piece of cloth. What would be the best way to determine which piece of cloth absorbs the most heat?
A
Place one cloth under a 100-W bulb for ten minutes. place the other cloth under a 50-W bulb for 20 minutes. Measure the temp.
B
place one cloth outside in the sun, and the other cloth under a lamp. Measure the temperature.
C
Put both cloths in the shade. Measure the temperature change.
D
Place each cloth under the same type of lamp for the same time period.
5) Which of the following is a qualitative observation?
A
The Smart Board is 2 meters high and 2 meters wide.
B
Sixteen students were present for roll call, and five other showed up late.
C
The classroom walls are white.
D
There are 25 students in the room.
6) Which of the following is a quantitative observation?
A
Lemon juice turns blue litmus paper red.
B
Lemons taste sour.
C
The pH of lemon juice is 2.0.
D
Lemon juice reacts with zinc.
7) In a experiment designed to determine if a specific brand of cat food is causing cats to meow excessively, it would be best to ________.
A
mix together the specific brand of food with another brand and feed to cats
B
let some of the cats drink water with the specific brand of food
C
feed some cats with the specific brand of cat food and the others with another brand
D
keep feeding cats with the specific brand of cat food and record the results
8) Students are studying daily ozone levels near a school of asthmatic children. In order to have unbiased results, they made a questionaire for all to fill out at school and didn't mention asthma or ozone. What else could they do to increase accuracy?
A
repeat the study at all the schools in the city
B
create another questionaire for everyone participating in the study
C
tell everyone that they are actully studying a different problem
D
find articles about ozone levels and asthma to use in their results
9) Our understanding of the universe has changed greatly over time. Which explains why this has occurred?
A
Larger number of scientists have opinions that must be incorporated.
B
New scientific discoveries lead to new theories.
C
Theories are redesigned every ten years as a necessity.
D
The constantly evolving universe requires new theories to describe it.
10) Alfred Wegener theorized that continents drift apart from one another and did so in the past.At first, scientists dismissed Wegener. Which of the following helps prove the Continental Drift Theory?
A
Fossils of the same species are found on the east coast of South America and weat coast ofAfrica.
B
Scientists realize that volcanoes occur on the edges of tectonic plates.
C
Satellite images show Earth's lithosphere as a single plate.
D
Geologists measure the width of the Atlantic Ocean.
*select an answer for all questions
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