Font size
WorksheetsSCIENCE 6 - GK2
Total questions: 58
Worksheet time: 20mins
Non-metal is ...
brittle
strong
tough
Which of the following materials can conduct electricity?
A. Wood
B. Rubber
C. Copper
D. Plastic
A material that can be drawn into thin wires is called:
A. Brittle
B. Ductile
C. Magnetic
D. Sonorous
Which of the following materials are insulators?
A. Iron and steel
B. Copper and aluminum
C. Rubber and glass
D. Gold and silver
A material that is attracted to a magnet is called:
A. Conductive
B. Magnetic
C. Insulating
D. Ductile
Which of the following materials can be hammered into thin sheets without breaking?
A. Malleable
B. Brittle
C. Magnetic
D. Sonorous
Metals and non-metals are types of:
A. Conductors
B. Insulators
C. Materials
D. Ductile substances
What happens when a brittle material is struck?
A. It stretches
B. It shatters
C. It melts
D. It bends
Which word describes a material that reflects light and appears bright?
A. Brittle
B. Shiny
C. Magnetic
D. Sonorous
A material that produces a ringing sound when struck is called:
A. Sonorous
B. Malleable
C. Brittle
D. Insulator
The left column of the periodic table is a metal or a nonmetal?
metal
non-metal
The right column of the periodic table is a metal or a non-metal.
non-metal
metal
Why is an alloy of aluminium used for making planes instead of pure aluminium?
An alloy of aluminium is ..................... ....... ................ than pure aluminium, making it better for building planes.
(a)
Why do we not use pure silver for our coins?
Pure silver is too ......... and can get .......... easily, so we mix it with other metals to make it .............
(a)
Jewelry made of zinc and plated with gold, is it an alloy?
yes
no
brass lock, is it alloy?
yes
no
Chọn hình thể hiện cấu trúc của hợp kim
(a)
Which of the following is a safety measure when heating an evaporating basin containing a solution of copper sulfate?
A. Use a wooden stick to stir the solution while heating.
B. Wear safety goggles to protect your eyes from splashes.
C. Heat the solution until it starts boiling vigorously.
D. Hold the evaporating basin with your hands to check the temperature.
Vị trí B là:
warm water out
warm water in
vị trí A là:
cold water in
cold water out
Số 1 là: fil...... fu......
(a)
số 2 là: fil.... pa....
(a)
số 3 là: co.... fl.....
(a)
chọn từ trong ngoặc điền vào chỗ trống:
(sour, sodium hydroxide, harmful, corrosive, opposites, citric, soapy, water, neutralize)
a. Acids typically have a (a) taste. For example, acid in lemons and limes gives them their tangy flavor.
chọn từ trong ngoặc điền vào chỗ trống:
(sodium hydroxide, harmful, corrosive, opposites)
b. Many household cleaning agents contain alkalis, such as (a) (NaOH)
Nhiều chất tẩy rửa trong gia đình có chứa bazơ, chẳng hạn như natri hydroxit (NaOH).
chọn từ trong ngoặc điền vào chỗ trống:
(harmful, corrosive, water, neutralize)
c. Acids can be diluted (pha loãng) with ......... to reduce their danger, but they remain ...........and can irritate the skin and eyes.
Axit có thể được pha loãng với nước để giảm bớt sự nguy hiểm, nhưng chúng vẫn có tính ăn mòn và có thể gây kích ứng da và mắt.
(a)
chọn từ trong ngoặc điền vào chỗ trống:
(corrosive, opposites, citric, soapy)
d. Strong alkalis can feel ....... to the touch but are highly ................ and can dissolve skin.
(Các bazơ mạnh có thể có cảm giác trơn khi chạm vào nhưng lại có tính ăn mòn cao và có thể làm tan da.)
(a)
NHỚ ĐỌC CÂU TIẾNG VIỆT BÊN DƯỚI ĐỂ CHỌN CHO ĐÚNG
(opposites, citric, soapy, water, neutralize)
Alkalis are chemical ................. of acids and ................... acids when mixed.
(Các bazơ là đối lập với axit về mặt hóa học và trung hòa axit khi trộn lẫn.)
(a)
3 CHẤT NÀO LÀ ACIDS?
1. Hydrochloric acid (HCl)
2. Sodium hydroxide (NaOH)
3. Sulfuric acid (H₂SO₄)
4. Citric acid (found in citrus fruits)
1, 2, 3
1, 3, 4
1, 2, 4
2, 3, 4
3 CHẤT NÀO LÀ ALKALIS?
1. Sulfuric acid (H₂SO₄)
2. Sodium hydroxide (NaOH)
3. Potassium hydroxide (KOH)
4. Calcium hydroxide (Ca(OH)₂)
1, 2, 3
2, 3, 4
1, 3, 4
1, 2, 4
Biển báo này cảnh báo gì?
(Toxic, Explosive, Serious Health Hazard, Flammable, Oxidising, Health Hazard, Hazardous to the Environment, Corrosive)
(a)
Biển báo này cảnh báo gì?
(Toxic, Explosive, Serious Health Hazard, Flammable, Oxidising, Health Hazard, Hazardous to the Environment, Corrosive)
(a)
Biển báo này cảnh báo gì?
(Toxic, Explosive, Serious Health Hazard, Flammable, Oxidising, Health Hazard, Hazardous to the Environment, Corrosive)
(a)
Biển báo này cảnh báo gì?
(Toxic, Explosive, Serious Health Hazard, Flammable, Oxidising, Health Hazard, Hazardous to the Environment, Corrosive)
(a)
Biển báo này cảnh báo gì?
(Toxic, Explosive, Serious Health Hazard, Flammable, Oxidising, Health Hazard, Hazardous to the Environment, Corrosive)
(a)
đây là biển báo gì?
Hazardous to the Environment
Health Hazard
Serious Health Hazard
Oxidising
Biển báo này cảnh báo gì?
Explosive
Hazardous to the Environment
Health Hazard
Flammable
Biển báo này cảnh báo gì?
Corrosive
Health Hazard
Hazardous to the Environment
Serious Health Hazard
acetic acid is found in ............
vinegar, pickles, and soy sauce.
helps the body break down food in the stomach.
yogurt, cheese, and sour cream.
lactic acid is found in ............
vinegar, pickles, and soy sauce.
helps the body break down food in the stomach.
yogurt, cheese, and sour cream.
hydrochloric acid is found in ............
helps the body break down food in the stomach.
in fertilizers, explosives.
lemons, oranges, limes, and grapefruits.
citric acid is found in ............
yogurt, cheese, and sour cream.
lemons, oranges, limes, and grapefruits.
helps the body break down food in the stomach.
nitric acid is found in ............
lemons, oranges, limes, and grapefruits.
leafy green vegetables
in fertilizers, explosives.
oxalic acid is found in ............
lemons, oranges, limes, and grapefruits.
leafy green vegetables
in fertilizers, explosives.
magnetism có nghĩa là:
từ tính
bay hơi
chưng cất
lọc
distillation có nghĩa là:
bay hơi
từ tính
chưng cất
lọc
filtration có nghĩa là:
lọc
chưng cất
bay hơi
evaporation có nghĩa là:
bay hơi
lọc
chưng cất
What metals are mixed together to make brass?
A. Brass = Copper (Cu) + Zinc (kẽm) (Zn)
B. Brass = Copper (Cu) + Tin (thiếc) (Sn)
C. Brass = Iron (Fe) + Carbon (C)
A
B
C
What metals are mixed together to make bronze?
a. Bronze = Copper (Cu) + Zinc (kẽm) (Zn)
b. Bronze = Copper (Cu) + Tin (thiếc) (Sn)
c. Bronze = Iron (Fe) + Carbon (C)
a
b
c
What metals are mixed together to make steel?
A. Brass = Copper (Cu) + Zinc (Zn)
B. Bronze = Copper (Cu) + Tin (Sn)
C. Steel = Iron (Fe) + Carbon (C) (and sometimes other elements like chromium or nickel)
A
B
C
ĐIỀN TỪ THÍCH HỢP VÀO CHỖ TRỐNG:
A steel pan is better than an iron pan because steel is str..... , more dur.... , and more resis... to rust and corrosion
(Một chiếc chảo thép tốt hơn một chiếc chảo sắt vì thép cứng hơn, bền hơn và có khả năng chống gỉ cũng như ăn mòn tốt hơn.)
(a)
quỳ tím chuyển màu gì?
1, if the solution is acid, litmus is ......
2, if the solution neutral, litmus is still .....
3, if the solution alkalin, litmus is ....
(a)
In a NEUTRAL solution, universal indicator is ..........
red
green
purple
Which one shows you more information about acid, base, neutral?
Litmus
universal indicator
the pH of neutral solution is .......
1
7
14
Litmus only shows whether the substance is an ........ or a .........
(a)
universal indicator provides more (a) about the pH of a solution.
