Segunda evaluación parcial de biología para novenos, tipo IB y con las dimensiones de evaluación de la ley Aveliño Siñani (Saber, Hacer, Decidir)

1. NIVEL AÑOS INTERMEDIOS
2 Partial Exam
ACADEMIC YEAR 2015
SAINT ANDREW´S SCHOOL SUBJECT: BIOLOGY
Años Intermedios TEACHER: Sofía Paz
9TH GRADE: A B C D
NAME:______________________________________
DATE:____________________ SCORE Saber: /100 Hacer: /100
Decidir: /100
This Exam has sections
Section A: Knowledge (SABER)
Section B: Analysis (HACER)
Section C: Extended Answer Question (DECIDIR)
Section A: (Knowledge) Choose the letter of the BEST answer
1. One difference between Ionic Bond and
Covalent bond is
a)Ionic bond is when atoms share electrons
and Covalent bond is when atoms
transferee electrons
b)Ionic bond are formed between three
atoms and covalent bonds between 2
atoms
c) Ionic bond is when atoms transferee
electrons and Covalent bond is when atoms
share electrons
2. Which of the following properties of
water is a result of hydrogen bonding?
a) Cohesion
b) Ability to dissolve substances
c) Lower density of ice compared to
liquid water
d) All of the above
3. Water molecule is formed by hydrogen and
oxygen atoms. They form chemical bond.
Which of the following statement is
CORRECT for the bond formation?
a) The hydrogen atoms transfer one
electron to the oxygen atom.
b) The oxygen atoms transfer two electrons
to the hydrogen atoms.
c) The oxygen atom shares one pair of
electron with each of the
hydrogen atoms
4. If you dissolve sugar into water, sugar is the
______.
a) Ion
b) Solute
c) Solution
5. The partial negative charge at one end of
a water molecule is attracted to the partial
positive charge of another water molecule.
What is this attraction called?
a) Ionic bond
b) Hydrogen bond
c) Covalent bond

2. NIVEL AÑOS INTERMEDIOS
6. Water is transported in plant tissues
against gravity due to which of the following
properties?
a) Adhesion
b) Hydrogen bonding
c) Cohesion
d) Two of the above
e) All of the above
7. Many mammals control their body
temperature by sweating. Which property of
water is most directly responsible for the
ability of sweat to lower body temperature?
a) Water's higher density than ice
b) Water's ability to dissolve molecules
d) The absorption of heat by the breaking of
hydrogen bonds
8. The ionic bond of sodium chloride is
formed when
a) Chlorine gains an electron from sodium.
b) Sodium and chlorine share an electron
pair.
c) Sodium gains an electron from chlorine.
9. Which of the following is a reason why
water warms much more slowly than
metal?
a) Thermal energy doesn’t enter into the
metal
b) Water molecules repel heat
d) Part of the thermal energy is consumed
by braking the hydrogen bonds of water
e) It takes more heat to raise the
temperature of a given amount of metal 1o
C than it does to raise the temperature of
water 1o C.
10. Which of the following describes a
hydrogen bond?
a) The bond between hydrogen and oxygen
within a molecule of water
b) The bond between hydrogen in one
water molecule and another hydrogen in a
different water molecule
c) The bond between hydrogen in one
water molecule and oxygen in a different
water molecule
d) The bond between two hydrogen atoms
within a molecule of water
11. Which of the following statements about
water is false?
a) Water molecules are polar
b) It takes very little heat to change the
temperature of water
c) All living organisms contain water
d) Ice is less dense than liquid water
e) None; all these statements are true
12. Hydrogen bonding between water
molecules is directly responsible for the fact
that ice is less dense than water at 0 degree
C.
A) True
B) False

3. NIVEL AÑOS INTERMEDIOS
Section B:
Analysis
a) Draw an example of two atoms forming an Ionic bond and two atoms forming a
covalent nonpolar bond.
Give this information about each atom: Element, number of protons and number of
electrons.
Ionic Bond:
Atom 1: Atom2: Atom 1: Atom 2:
Covalent:
Atom 1: Atom2: Atom 1: Atom 2:
b) Describe the relation between each pater propertyand the hydrogen bonds filling
the table below.
Water´s property Relation with Hydrogen Bonds

4. NIVEL AÑOS INTERMEDIOS
Section C: Extended Answer Question:Application of Knowledge and Decisions
a) Explain the importance of water´s properties by giving an example of how each
one is vital for a living organism.
Criterios de Evaluación:
A) DOMINIO DEL TEMA
5-6 Explica de manera coherente cada una de las propiedades del agua y la
relaciona con la función específica de un organismo
3-4 Explica de manera coherente dos a tres de las propiedades del agua yla
relaciona con la función específica de un organismo
1-2 Explica de manera coherente una propiedad del agua relacionándola con la
función específica de un organismo
Aprobación: 3
A) Conclusión y evaluación
5-6 Explica de manera coherente y fundamentada la importancia vital de cada
propiedad del agua, a partir de los ejemplos planteados
3-4 Explica de manera coherente y fundamentada la importancia vital de dos o tres
propiedades del agua, a partir de los ejemplos planteados
1-2 Explica de manera coherente y fundamentada la importancia vital de una
propiedad del agua, a partir del ejemplo planteado
Aprobación: 3

5. NIVEL AÑOS INTERMEDIOS
b) Design an experiment. You have learned that attractions between water molecules
help move water through a plant. Design an experiment that would demonstrate that the
direction of this movement is from the roots to the leaves and not opposite
Criterios de Evaluación:
A) Conclusión y evaluación
5-6 Plantea un experimento coherente y verificable, especificando materiales y
método
3-4 Plantea un experimento coherente y verificable, especificando materiales y/o
método
1-2 Plantea un experimento coherente, especificando materiales y/o método
Aprobación (3)