DCAS Science Review

1. DCAS Science Review 5th Grade

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

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

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

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

6. Exactly 35 g. • Less than 30 g. • Between 20g. And 35g. • Not enough information is given to answer the question. 5. Based on this graphthe massof mixture Number 3 is most likely

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

8. Yes, all of the substances are harmless. • No, not all substances dissolved. • No, 10 substances are not dissolved. • Yes, all variables are controlled. 7. Does the chart below show data from a fair test?

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

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

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

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

13. habitat. • life cycle. • behavior. • territory. 12. Something an animal does is called a

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

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

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

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

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

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

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

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

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

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

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

25. evaporation. • hand separation with a magnet. • filtering. • screening. 24. The method for separating solutions is

26. End of DCAS Science Review