1. DCAS Science Review 5 th Grade Karon Massado Elementary Science Specialist 2012

2. 1. Which statement is false? A. The Sun provides heat and light to the Earth. B. The Sun revolves around the earth once a year. C. The Sun’s rays strike the Earth at different angles. D. The Sun’s light is reflected by the Moon.

3. 2. Which of these solutions has the highest concentration? A. 50 ml of detergent and 1000 ml of water. B. 100 ml of detergent and 1000 ml of water. C. 100 ml of detergent and 500 ml of water. D. 50 ml of detergent and 50 ml of water.

4. 3. A. 1 will show the greatest weight. B. 2 will show the greatest weight. C. 3 will show the greatest weight D. All will show the same weight. The same brick is put on a scale in three different ways.

5. 4. Which of the following events will result in a different kind of material being formed? A. A nail is left outside and it rusts. B. A glass is dropped and it shatters into small pieces. C. A rubber band is stretched until it breaks. D. A pencil is sharpened to a point.

6. 5. Based on this graph the mass of mixture Number 3 is most likely A. Exactly 35 g. B. Less than 30 g. C. Between 20g. And 35g. D. Not enough information is given to answer the question. Mass of Mixtures Used Mass (g.) 45 40 35 30 25 20 15 10 5 O Number 1Number 2Number 3Number 4 Mixtures

7. 6. Which statement best describes physical properties? A. Physical properties can be observed through the senses. B. Physical properties are on the internet. C. Physical properties are an important part of physical science. D. Physical properties are interesting.

8. 7. Does the chart below show data from a fair test? A. Yes, all of the substances are harmless. B. No, not all substances dissolved. C. No, 10 substances are not dissolved. D. Yes, all variables are controlled. Testing Liquids to Make Solutions Substance (one spoonful) Completely Dissolves in Vegetable Oil Completely Dissolves in Water Completely Dissolves in Rubbing Alcohol 10 mls. SaltNoYesNo VinegarNoYes Baking SodaNoYesNo FlourNo DetergentNoYesNo

9. 8. It is important for scientific drawings to be accurate. Accurate scientific drawings include A. color. B. labels. C. color, labels, scale. D. A and B.

10. 9. This animal lives in a hot desert. What physical feature helps it cool itself? A. It cools itself though its long, open ears. B. It cools itself breathing through its nose. C. It cools itself by fanning with its tail. D. It cools itself when it sheds its fur.

11. 10. What is the correct order of these earth materials based on particle size from smallest to largest? A. Clay, fine sand, gravel, coarse sand. B. Clay, gravel, fine sand, coarse sand. C. Clay, fine sand, coarse sand, gravel. D. Gravel, coarse sand, fine sand, clay.

12. 11. In a falling weigh system, what order would these trucks cross the finish line? A. First A, then B, then C. B. First B, then A, then C. C. First C, then A, then B. D. They would all cross at the same time.

13. 12. Something an animal does is called a A. habitat. B. life cycle. C. behavior. D. territory.

14. 13. These rocks are made of the same minerals. Which rock would most likely be carried furthest down a river?: A.B.C.D.

15. 14. Predict what would happen in this food chain: sun algae minnows perch bass heron, if all the bass disappear. A. The perch population will increase and the minnow population will decrease. B. Both perch and minnow populations will increase. C. Both perch and minnow populations will decrease. D. Another fish would take the place of the bass.

16. 15. This picture illustrates: A. The rotation of the Earth. B. The revolution of the Earth. C. The Moon’s shadow on the Earth. D. All of the above.

17. 16. What is the function of the seed structure of plants? A. Once the seed absorbs enough fertilizer it develops into a new plant. B. Once the seed absorbs enough sunlight it develops into a new plant. C. Once the seed absorbs enough water it develops into a new plant. D. All of the above.

18. 17. Why do electricians wear rubber gloves when working with electric current? A. Rubber gloves serve as conductors. B. Rubber gloves keep their hands warm and dry. C. Rubber gloves serve as insulators. D. None of the above.

19. 18. What changes need to be made to complete this circuit? A. None. B. The paper clip switch must be closed. C. The wire from the battery to the bulb holder must be moved to the other side of the bulb holder. D. B and C.

20. 19. An example of a question that can not be investigated using a fair test is : A. Which materials are attracted to a magnet? B. Does water expand when it is frozen? C. How often does the moon change phase? D. What is a physical property?

21. 20. Which of these liquid layers is least dense? A. The yellow one at the top is most dense. B. The clear one in the middle is clearly least dense. C. The yellow one at the top is least dense. D. The dark one at the bottom is the most dense.

22. 21. Which statement best describes producers? A. Organisms that eat plants and animals. B. Organisms that make their own food. C. Organisms that eat only plants. D. Organisms that are part of a food web.

23. 22. This illustration shows A. someone demonstrating the water cycle. B. someone demonstrating a safety issue. C. someone demonstrating how smoke forms. D. A and B.

24. 23. Which of the following describes a life cycle? A. Seed – Sprout – Seedling – Plant – Flower – Seed. B. Butterfly – Egg – Larva – Pupa – Butterfly. C. Tadpole – Froglet – Frog – Egg – Tadpole. D. All of the above.

25. 24. The method for separating solutions is A. evaporation. B. hand separation with a magnet. C. filtering. D. screening.

26. DCAS Science Review End of DCAS Science Review