2. PRE-TEST IN SCIENCE7
NAME: DATE:
1. Which of the following is an example of a solution?
a. Vinegar c. Food coloring in water
b. Mud in water d. Sugar dissolved in water e. Ice cream
2. Which statement describes the solute?
a. It is the solid formed in solution.
b. It is the liquid part of the solution.
c. It is the component of a solution in smaller amount.
d. It is the component of a solution in bigger amount.
3. Which of the following is NOT an example of an organ?
A. Brain B. Circulatory C. Heart D. Lungs
4. The cell is the building block of all living creatures.
A. True B. False
5. Which level of biological organizations is made up of coordinated organ system?
A. Cell B. Molecule C. Organism D. Tissue
6. Human skin tissue and connective tissue are examples of what level of biological
organization?
A. Cells B. Molecules C. Organs D. Tissues
7. Connects the eyepiece to the objective lenses
A. Eyepiece B. Stage C. Diaphragm D. Tube
8. Holds two or more objective lenses and can be rotated to change power
A. Nosepiece B. Tube C. Diaphragm D. Base
9. The plant’s chloroplasts are damaged, which is likely to happen?
a. It cannot protect the plants. c. It cannot make food for the plant.
b. It cannot reproduce. d. It cannot excrete waste products.
10. Vegetative plant structures that arise from____________.
A. roots B. stem C. leaves D. all of the above
11. Planarians reproduce through___________.
a. budding b. fragmentation c. spore Production d. vegetative propagation
12. What is a relationship where two organisms compete for limited natural resources?
A. commensalism B. competition C. mutualism D. parasitism
13. A tick living on your dog and sucking its blood would be an example of _______.
A. commensalism B. competition C. mutualism D. parasitism
14. A remora riding on and feeding on scraps from a shark would be an example of
____________.
A. commensalism B. competition C. mutualism D. parasitism
15. Which statement below is an expression of the velocity?
a. 60 km per hour north b. 60 km c. 60 km per hour d. 35 km equivalent
16. The total length of space traveled.
a. distance b. speed c. displacement d. acceleration
17. The straight distance from the origin to the end point.
a. distance b. speed c. displacement d. acceleration
18. __________ is firm and stable in shape; not liquid or fluid.
a. thermometer b. meter c. metal d. solid
19. __________ is a good conductor of heat.
a. thermometer b. meter c. metal d. solid
20. It is a material or device that conducts or transmits heat, electricity, or sound,
especially when regarded in terms of its capacity to do this.
a. conductor b. conduction c. convection d. heat
21. What is the correct order of steps in the scientific method?
A. Ask a question, make a hypothesis, test the hypothesis, draw
conclusions, and analyze results.
B. Ask a question, make a hypothesis, test the hypothesis, analyze
results, and draw conclusions.
C. Ask a question, analyze results, make a hypothesis, test the
hypothesis, and draw conclusions.
D. Make a hypothesis, test the hypothesis, analyze results, ask a
question, and draw conclusions.
22. What is the process of obtaining information using your senses?
A. Inquiry B. Conclusion C. Observation D. Scientific Method
23. Which of the following is the simplest form of substance?
A. Chemical Formula B. Compound C. Element D. Mixture
24. Compounds are formed when two or more _____________ are combined.
A. Elements B. Minerals C. Nutrients D. Food products
25. Which of the following can be used to separate iron and sand mixture?
A. Alcohol Lamp B. Filter Paper C. Magnet D. Spoon
26. To separate salt from water mixture in a seawater mixture, what process is used?
A. Condensation B. Filtration C. Distillation D. Evaporation
3. 27. Which of these does the dissolving that is usually presented in greater amounts?
A. Solute B. Solvent C. Solution D. Hydration
28. What is the substance called that is being dissolved in a solution?
A. Solute B. Mixture C. Solvent D. All of the Above
29. A solution is prepared by mixing a 20g of sodium chloride in 80g of water.
What are the concentrations of the solute and solvent in % by mass?
A. Solute: 10% ; Solvent: 90% B. Solute: 20% ; Solvent: 80%
C. Solute: 30% ; Solvent: 70% D. Solute: 40% ; Solvent: 60%
30. What is the volume of a 25% methyl solution that contains 20mL of methyl?
A. 6.25Ml B. 7.25mL C. 8.25mL D. 9.25mL
31. Controls the sum of light coming to the specimen
A. Objectives B. Base C. Nosepiece D. Diaphragm
32. Light or mirror that projects light through the diaphragm
A. Stage clips B. Light source C. Tube D. Arm
33. It is the layer of the planet Earth where life exists, what is it?
A. Biosphere B. Cell C. Molecule D. Population
34. Which structure is the simplest level of organism in humans?
A. Biosphere B. Cell C. Ecosystem D. Population
35. The simplest unit of structure and function in all living things is
called______________.
A. Cell B. Organ C. Organ system D. Tissue
36. An organelle which can only be found in animal cells.
A. centrioles B. chloroplasts C. lysosomes D. nucleus
37. This is how organisms grow and repair themselves.
A. reproduction B. cell division C. pollination D. cell specialization
38. Asexual reproduction involves ___________________.
A. one parent only B. male and female parents C. no parents D. all of the above
39. What is the area in which an organism lives?
A. ecology B. environment C. habitat D. niche
40. What is the relationship between two organisms in a community?
A. commensalism B. mutualism C. parasitism D. symbiosis
41. What is velocity?
A. distance B. location of an object C. acceleration D. speed with direction
42. The rate at which velocity changes
A. distance B. speed C. displacement D. acceleration
43. Light travels continuously until it hits an object. In what path does light travel?
A. wavy B. bent C. straight D. backwards
44. A prism splits white light into:
A. a rain drop B. a spectrum C. a reflection D. dark light
45. Energy from the sun reaches the earth through?
A. ultraviolet waves B. infrared waves
C. mechanical waves D. electromagnetic waves
46. Of the following properties of a wave, the one that is independent of the others is its
_______________________.
A. amplitude B. wave speed C. wavelength D. frequency
47. It is used to measure temperature.
A. thermometer B. meter C. metal D. solid
48. __________ is a poor conductor of heat.
A. thermometer B. insulator C. metal D. solid
49.An attracting force occurs between two charged objects when the charges are of
__________.
A. unlike signs B. like signs C. equal magnitude D. unequal magnitude
50.A repelling force occurs between two charged objects when the charges are of
__________.
A. unlike signs B. like signs C. equal magnitude D. unequal magnitude
4. ANSWER KEY FOR PRETEST IN SCIENCE 7
1. B,C,D
2. C
3. B
4. A
5. C
6. D
7. D
8. A
9. C
10. D
11. B
12. B
13. D
14. A
15. A
16. A
17. C
18. D
19. C
20. A
21. B
22. C
23. C
24. A
25. C
26. D
27. B
28. A
29. B
30. A
31. D
32. B
33. A
34. B
35. A
36. C
37. B
38. A
39. C
40. D
41. D
42. D
43. A
44. B
45. A
46. A
47. A
48. B
49. A
50. B
