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Worksheetsscience form 2
Total questions: 21
Worksheet time: 7mins
The calorific value of rice is 14 kJ g1. Calculate the calorific value for 100 g of rice.
14 kJ
28 kJ
1 400 kJ
2 800 kJ
Which substance is reabsorbed in the large intestine?
Water
Glucose
Fatty Acid
Mineral Salts
what is the smallest unit of protein when protein are completely digested?
Glycerol
Fatty Acid
Simple Sugar
Amino Acid
Which of the following describe how artificial active immunity is obtained?
Through breastfeeding
Through vaccine injection
Through sickness recovery
Through Antiserum injection
Which of the following types of blood cells is involved in the second defences mechanism?
Platelet
Blood plasma
Red blood cell
White blood cell
Name two types of diseases that are spread by vectors.
(a)
diagram 1
diagram 1 shows a few pieces of clothes hanging on a rail.
Which of the following factors will not cause the clothes to dry faster?
Higher temperature of the surrounding
Movement of Air
Lower humidity of Air
Number of clothes
Which is the following is true about the water droplets?
Have sour taste
Turns red litmus paper to blue
Its pH value is 7
Decolourises Acidic Potassium Permanganate Solution
What does a lemon taste like?
Sour
Bitter
Sweet
Tasteless
A charged plastic ruler is brought closer to the metal cap and the gold leaf diverges more. What is the charge of the plastic ruler?
(a)
Mark correct about the device
It is a first class lever
It is a third class lever
The fulcrum is located between the load and the force
It isin the same class of lever as a bottle opener
Which of the following levers can be classified in the same class as the diagram above?
Why are buildings in tropical countries usually painted in white?
(a)
Which of the following is the factor that affect the pitch of sound produced?
Amplitude
Frequency
The object's surface
The source of the sound
Which of the following characteristics cannot be used to classify stars?
Colour
Velocity
Brightness
Distance from Earth
Which of the following is true about Galaxy?
Planets with natural satellite
A cloud of dust and gases
A collection of millions of stars,gases,dust and planet
A group of small rocks that floats in outer space
Which of the following is the correct arrangement of planets in ascending order of distance from the Sun?
(a)
Mark(✅)for the object that do not belong to our Solar System.
Black Hole
Comet
Asteroid
Nebula
Which planet in Solar System does not rotate from the west to east?
which of the following was probably the factor that lead to the extinction of dinosaurs?
Meteor shower enters the Earth
Meteorites strikes the Earth's surface
The Earth was hit by asteroids
The condition of Earth's surface
which of the following was probably the factor that lead to the extinction of dinosaurs?
Meteor shower enters the Earth
Meteorites strikes the Earth's surface
The Earth was hit by asteroids
The condition of Earth's surface
