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WorksheetsSCIENCE FORM 3
Total questions: 21
Worksheet time: 10mins
What does xylem transport?
Water and minerals
Water only
Sugar
Food
Which of the following carries blood away from heart?
Vein
Artery
Capillary
Valve
What is the function of the blood vessel labelled D?
To transport blood from the heart to the lungs
To transport blood from the heart to the rest of the body.
To transport blood from the rest of the body to the heart.
To transport blood from the lungs to the heart.
Figure below shows one type of blood cell. What is the name of the blood cells and its function?
Red blood cell , Transport food
White blood cell , Transport food
Red blood cell, Transport oxygen
White blood cell, Transport oxygen
Which shows the correct pathway of oxygenated blood entering and leaving the heart?
Pulmonary vein > left atrium > left ventricle > aorta
Pulmonary vein > left atrium > right ventricle > aorta
Vena cava > right atrium > right ventricle > pulmonary artery
Vena cava > right atrium > left ventricle > pulmonary artery
Magnesium is more reactive towards oxygen compared to
Calcium
Zinc
Sodium
Potassium
In a less vigorous reaction between a less reactive metal such as iron and oxygen, only a glow or slow change in colour is observed
True
False
What are the two non-metal elements that are included in the reactivity series of metals?
Calcium
Carbon
Sodium
Hydrogen
What will happened when lead oxide react with hydrogen?
Lead oxide burns brightly
Yellow powder turns shiny grey
Lead is produced
All of the above
Based on the diagram, what is the function of anhydrous calcium chloride in the experiment?
To absorb water vapour so that dry hydrogen will be produced
To supply hydrogen gas
To separate the metals
To release heat for combustion
Based on the following diagram, what is the function of potassium manganate (VII) crystals in this experiment?
To supply oxygen
To avoid the metals to mix with each other
To release heat
To give out water vapour
Write the word equation between metal and oxygen.
Metal + Oxygen Metal oxide
Metal + Oxygen Metal oxygen
Metal + Oxygen = Metal oxide
Metal + Oxygen = Metal oxygen
Write the word equation between metal oxide and hydrogen.
Metal oxide + Hydrogen Metal + Water
Metal oxide + Hydrogen Metal hydroxide
Metal oxide + Hydrogen Metal + Water + Carbon dioxide
Metal oxide + Hydrogen Metal oxide + Water
Which reaction explains about exothermic reaction?
Heat is absorbed from the surroundings
Surrounding temperature increases
Heat energy is changed to chemical energy
Thermometer reading decreases
Which statement is correct about endothermic reaction?
Heat is released
Thermometer reading increases
Surrounding temperature increases
Breaks the chemical bonds of the reactant
The diagram shows the bread dough is put into an oven to be baked.
Which statements are correct about the baking process?
Choose more than one answer.
Endothermic reaction occurs
The heat from the oven is absorbed by the dough
Thermal equilibrium achieved when the bread is cooked
The formation of new substance did not occur
Endothermic is a reaction that absorbs heat.
TRUE
FALSE
The diagram shows a chemical reaction.
The initial temperature of distilled water is 27⁰C.
What temperature may be recorded by the thermometer in the sodium hydroxide solution?
35⁰C
20⁰C
18⁰C
10⁰C
Which of the following is an endothermic reaction?
Photosynthesis
Respiration
Burning of dried leaves
Neutralisation
Choose the tools that apply the concept of thermochemistry reactions.
