Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Name: ………………………………………………….….. Date: /
/2016
Q.1: Give the scientific term .
1- The ability to cause a change. ( ………………………)
2- The energy that an object has due to its position , condition , or chemical
composition. (………………………………)
3- The energy of moving objects. (…………………………...)
4- The sum of an object’s potential and kinetic energy. (……………………..)
Q.2 : Determine whether each of the following energy forms is potential
or kinetic energy .
1-Sound energy: ________________________
2-Thermal energy : ________________________
3-Chemical energy : _______________________
4-Nuclear energy : ________________________
Q.3 : What are the factors that affect :
1-Potential energy : ________________________ _______________________
2-Kinetic energy : _______________________ __________________________
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 1
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Q.4 : Give the reason why .
1- A big truck causes more damage than a small car .
__________________________________________________________________
2-We should not drive in a high speed .
__________________________________________________________________
3- At the bottom of the ramp , the kinetic energy is at its peek .
_______________________________________________________________
Q.5 : Complete the following :
1- Stretching a rubber increases its __________________________
2-Energy can be expressed in __________________________
3- Sun releases a large amount of __________________________
4- Results from the position on motion of changed particles ________________________
5-____________________takes place when energy changes from one form into another.
6-Law of conservation of energy states that :
__________________________________________________________________
7- The gravitational potential energy increases as its ____________________ or
______________________
8- As the skater moves closer to the ground, his potential energy __________________
and his Kinetic energy_____________________
Q.6 What are the energy transformations in the following :
1-Battery: ___________________________________________
2-Can: ______________________________________________
3-Microwave : _______________________________________
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 2
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Q.7 : How is the sun related to nuclear , electromagnetic, and heat energy .
________________________________________________________________________
Q.8: When the chemical energy can be released?
__________________________________________________________________________
Q.9: When the chemical energy can be released?
__________________________________________________________________________
Q.10: From where the sun gets its huge energy.
____________________________________________________________________________
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 3
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Unit 1 , L.4 :
Q.1: Define each of the following terms.
1- Atom:
……………………………………………………………………………………..
2- Element:
……………………………………………………………………………………..
3-Compound:
……………………………………………………………………………………..
4- Mixture:
……………………………………………………………………………………..
6-Molecule:
……………………………………………………………………………………..
7-Suspension:
……………………………………………………………………………………..
8- Collide:
……………………………………………………………………………………..
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 4
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Q.2: Give three examples of how to separate a mixture.
……………………………………………………………………………………..
……………………………………………………………………………………..
……………………………………………………………………………………..
Q.3: Put ( T ) or ( F ) :
1- Water is not considered as a pure substance. _____
2- We can break pure substances by physical changes. _____
3- Physical changes don’t change the identity of a pure substance. ____
4-A substance with 12 PH value is a weal base. _____
5- The compounds that make up plastic are organic. ____
6- Mixtures have definite properties like pure substances. _____
7-Collides are heterogeneous mixtures. _____
8-Molecules are always made of two, or more kinds of atoms. _____
9-Metals make up most of the periodic table. _____
10-Litmus paper turns blue with bases. _____
Q.4: Give the reason why.
1- Granite doesn’t have definite properties.
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 5
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
……………………………………………………………………………………..
2- We should never taste, smell, or touch chemicals to test acidity. ____
……………………………………………………………………………………..
Q.5: Fill the following table with the four biochemical categories and their
functions.
Biochemical
Function
Examples
Q.6: Classify the following substances into acids and bases.
Lemonade - yogurt - Baking soda – detergents – Vinegar – Glass cleaner
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 6
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Acids
Bases
Q.7 : Complete the following sentences :
1- To break chemical bond, a ___________________ is required.
2-_________________ is needed to separate water molecules into oxygen and
hydrogen.
3-_________________are located at the left side of the periodic table .
4-Organic refers to compounds that contain _____________ and ______________ .
5-Acids have PH value below _______________
6-_________________is used to determine weather a substance is an acid or a base.
Q.8: Give an example of the following :
1- Liquid Solution: ________________________________
2- Solid: _________________________________
3- Gas:____________________________________
4- Suspension: _______________________________
5- Colloid: __________________________________
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 7
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Q.1: What are the four main ideas of Dalton’s theory.
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
……………………………………………………………………………………………………………
……………………………………………………………………………………….…………………..
Q.2: Complete the following sentences.
1- Chadwick discovered the ………………………..in the nucleus of the atom.
2- ……………………..model helped the scientists to predict the chemical properties of
elements.
3- ………………………….of an atom are considered as charges only.
4- We call the atom that has a net charge that is not zero.
5- The atomic number of a sodium atom that has 11protons and 12 neutrons is …….
Q.3: a. What is the net charge of a nucleus that has 4 protons and 5 neutrons?
………………………………………
b .What is the atomic number?
……………………………………….
c. What is the mass number?
………………………………………..
Q.4: Give the reason why.
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 8
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
1- The net charge of an atom before the chemical reaction is zero.
…………………………………………………………………………………………….
2- The nucleus is very dense.
……………………………………………………………………………………………..
Q.5- List the ideas and suggestions of each of the following scientists.
1- Thomson:
……………………………………………………………………………………..
……………………………………………………………………………………..
2- Rutherford:
……………………………………………………………………………………..
……………………………………………………………………………………..
3- Bohr:
……………………………………………………………………………………..
……………………………………………………………………………………..
Q.6: Fill the following table.
p
n
S16
33
HOLIS
e
Science Worksheet/ Second Semester
Atomic number Mass number
Gr.6
Page 9
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Q.1: Complete the following.
1- Each vertical column of elements in the periodic table is called ………….
2-Elements in group 18 are all ………………
3- …………………..are found in the outermost portion of the electron cloud.
4- Each horizontal raw of elements is called …………………….
5- Elements are arranged in the periodic table in order of ……………………
6- Elements of group 18 are called ………………….. ……………..
7- …………………………are elements that have some properties of metals
and some properties of nonmetals.
8- Group …… is very reactive, because elements tend to lose …………...
9- …………………is written at the top of the element symbol, while …………………….
is written at the bottom.
Q.2: Compare between metals and non metals.
Metals
HOLIS
Science Worksheet/ Second Semester
Nonmetals
Gr.6
Page 10
Science Department
House of Language International Schools
HOLIS
Worksheet
Grade: 6
Q.3: Complete the following table.
Chemical symbol Chemical name
Chemical symbol Chemical name
Li
Zn
Carbon
Fe
Silver
Calcium
Al
Chlorine
Copper
Oxygen
Gold
Ne
S
Na
Mg
He
Q.4. Give the reason why.
1-Properties of elements in a group are similar.
……………………………………………………………………………………………………………………….……….
2- Valence electrons are able to participate in the chemical bonding.
…………………………………………………………………………………………………………………………………..
HOLIS
Science Worksheet/ Second Semester
Gr.6
Page 11