Science Exam reviewer, Quizzes of Science education

Download Science Exam reviewer and more Quizzes Science education in PDF only on Docsity! Diagnostic Examination "The important thing is to never stop questioning." - Curie Skłodowska Directions: Choose the letter of the correct answer. Write your answers on a separate sheet of paper.2 4) What does food browning usually indicates? a. The food is starting to spoil. b. The fruit is starting to ripen. c. The fruit is starting to grow. d. The food is starting to cook. 5) You noticed that your gate is starting to rust. What will you suggest to your parents to prevent it from completely rusting? a. Tell them to wash it with soap and water. b. Tell them to scrub it and place some water after. c. Tell them to put some oil on its rusty surface. d. Tell them to paint the gate to cover its surface 5 6) What happens to water when heat is applied to it? a. It starts to boil and melts. b. It starts to boil and evaporates. b. It cools down and freezes. d. It cools down and turns to gas. 7) What phase change happens when a solid turns to liquid after application of heat? a. Freezing b. Melting c. Evaporation d. Condensation 6 8) Gasoline easily catches fire. Based on the statement, what property of material does gasoline exhibit? a. Flammability b. Flexibility c. Density d. Luster 7 13) In which method of waste management can energy be obtained from waste materials? a. Recycle b. Reuse c. Recover d. Repair 14) What is the role of oxygen in human body’s metabolism? e. It dissolves digested food which absorbs energy and allows body to function. f. It reacts with digested food which releases energy that allows body to function. g. It makes the body weaker because of too much metabolism. h. It allows the body to rest after metabolism. 10 15) Which of the following is best to use in making beads for accessories? a. soiled tissue b. carton box c. toothpick d. magazine paper 16) Which of the following useful products cannot be made from paper? e. Floater f. clutch bag g. placemat h. basket 11 17) Which of the following waste materials should be often used in recycling? a. Paper b. glass bottles c. Plastics d. carton boxes 18) Which of the following materials is best to use as an instant flower vase? e. soda bottles f. wide-mouthed jars g. soda can h. shoe box 12 23) What organ holds the sperm cells temporarily? a. Scrotum b. vas deferens c. Epididymis d. Cowper’s gland 24) Which of the following hormones is released by the testes? e. Estrogen f. Progesterone g. Uretrone h. Testosterone 15 25) What organ releases an egg cell? a. fallopian tube b. Uterus c. Ovary d. cervix 26) What organ is also called the birth canal? e. Vagina f. fallopian tube g. uterus h. cervix 16 27) Which part of the female reproductive system expands when the baby is about to be delivered? a. fallopian tube b. Cervix c. ovary d. uterus 28) What gland releases hormones that jumpstart puberty? e. Cowper’s gland f. prostate gland g. pituitary gland h. mammary gland 17 33) Which animal carries its still developing embryo outside its womb? a. Elephant b. Rabbit c. Kangaroo d. Dog 34) Which is a disadvantage for animals that are born alive? e. The parent can protect the embryo by protecting itself. f. The parent can carry a limited number of embryo. g. The parent allows the embryo to look for its own food. h. The parent can travel without worrying about the safety of the growing baby or babies. 20 35) Why can’t birds get their own food as soon as they are hatched? a. Their wings are not yet fully developed. b. Their parents are very protective. c. They do not have teeth yet. d. They still need the yolk from their eggs. 36) Which explains the need for chicken eggs to be porous? e. It prevents the egg from rolling. f. It allows food to enter the egg. g. It allows the growing embryo to breathe. h. It makes the egg easier to be hatched. 21 37) At what stage in a life cycle is an animal ready to reproduce? a. Young b. Larva c. Adult d. Pupa 38) Which of the following animals undergo complete metamorphosis? e. Mosquito f. Cat g. Dragonfly h. Fish 22