This document appears to be a science exam for 6th grade students that covers topics on elements, chemical and physical changes, properties of matter, and stars. It contains multiple choice and short answer questions testing students' knowledge of classifying elements, identifying chemical and physical changes, defining science terms, ordering stars by size, illustrating atomic structure, and answering questions about chemical changes, physical changes, element classification, types of volcanoes, and food preservation. The exam instructs students to write neatly and read instructions carefully, and notes that following instructions properly and having a periodic table could earn additional points.

1. Gaudete Study Center, Inc.
4th Quarterly Examination
Science 6
t. Justine
Name:__________________________________________
Date:____________________
GENERAL INSTRUCTION: Read the instructions carefully for every test items. Try to write neat & legibly. Before you look at the test
questionnaire be sure you have your own Periodic Table of Elements. Failure to comply the given instructions will be deducted 2
points of your total correct answer.
I.
Identification: Write the symbols of the different elements in column A. Classify the elements as metals or nonmetals in
column B.
Elements
A
B
1. Chlorine
2. Silver
3. Phosphorus
4. Iodine
5. Samarium
6. Potassium
7. Calcium
8. Fluorine
9. Tin
10. Gold
II.
Study the different phrases. Find out if the changes are chemical or physical. Write PC if the change is physical, and CC if the
change is chemical. (right minus wrong)
_____________ 1. Ripening of fruit.
______________ 6. making salt from sea water.
_____________ 2. decaying of garbage.
______________ 7. drying of clothes.
_____________ 3. rusting of iron grills.
______________ 8. production of vinegar from coconut
_____________ 4. cooking of rice.
water.
_____________ 5. Evaporation of water on the roads after
______________ 9. combustion of gasoline in cars.
rain.
______________ 10. breaking of road pavement.
III.
1.
2.
3.
4.
5.
6.
Define the following terms accordingly. 3 points/item.
Rubrics
3 – has a complete substantial thoughts and no conventional error
2 – has enough thoughts, though no conventional error
1 – has indirect/poor thoughts.
Pure substance
Mixture
Compounds
Evaporation
Condensation
Volcano
IV.
Arrange the sequence of stars in terms of their sizes. Write 1 as the biggest and 5 as the smallest star.
______ SUPERGIANTS
______ MEDIUM – SIZED STARS
______ GIANTS
______ WHITE DWARFS
______ NEUTRON STARS
V.
Draw or illustrate the structures of atom and label its parts. 5 POINTS (NEUTRON, PROTON, ELECTRON, NUCLEUS,
ELECTRON ORBITALS).
VI.
Enumeration. WRITE YOUR ANSWERS ON THE SEPARATE SHEET.
1 – 3 Evidences of Chemical Change
4 – 7 Evidences of Physical Change
8 – 10 Classification of Elements
11 – 13 kinds of Volcano according to shape and composition of the cone
14 – 16 kinds of volcano according to activity
17 – 20 give non – metallic elements
21 – 25 what is the complete name of your Science Teacher
V. Write an essay on the following statements. Be sure that It has not less than 2 sentences per item. (5points/each).
1. How is the sun different from other stars?
2. why should you keep your knife dry before keeping or storing it?
3. how will you delay spoiling of food or rotting of meat?
*+3 points if you have your own periodic table