WorksheetsSCIENCE QUIZ
Total questions: 20
Worksheet time: 35mins
How do plants convert sunlight into energy?
Through a process called photosynthesis.
By absorbing heat from the ground.
Plants use sunlight to grow taller.
What role does protein play in the human body?
They are not important for health.
Proteins are just for muscle growth.
It helps build and repair tissues.
Why do animals need to consume food?
Animals eat just to enjoy flavors.
So they can grow fur and feathers.
To obtain energy and nutrients for survival.
How do carbohydrates benefit human health?
They provide essential vitamins.
They are a primary source of energy.
They help in muscle recovery.
What is the main reason animals have different diets?
To match their habitat and lifestyle.
Because they enjoy different tastes.
To compete with other species.
describe the process of respiration in plants and explain how it supports plants life.
Why do some plants grow poorly in waterlogged soil?
Describe the process of urine formation in the nephron.
Divya has a concave mirror that is 2 cm high. She places it at a distance of 16 cm from an object, which is also 2 cm high. The mirror produces a real image that is 3 cm high.
(i) What is the focal length of the mirror?
(ii) Find the position of the image.
1.8
-9.6
4/24
-24 cm
1/6
Explain Refraction.
How is Washing soda produced?
(contain three steps)
The value of universal gas constant
3.81 Jmol–1 K–1
8.03 Jmol–1 K–1
1.38 Jmol–1 K–1
8.31 Jmol–1 K–1
A chemical reaction does not involve:
Formation of new substances having entirely different properties than that of the reactants
Breaking of old chemical bonds and formation of new chemical bonds
Rearrangement of the atoms of reactants to form new products
Changing of the atoms of on element into those of another element to form new products
Which of the following product is formed when calcium oxide reacts with water?
Slaked lime
Carbon dioxide
Calcium oxide
Oxygen gas
The following reaction 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) is an example of a
displacement reaction
combination reaction
redox reaction
neutralization reaction
The mole ratio of hydrogen and oxygen gases liberated during electrolysis of
water is?
2:1
1:1
1:2
3:1
When aqueous sodium carbonate (Na2CO3) with HCl(aq), it gives
(a) NaOH, H2 (g) and CO2(g)
(b) NaCl, H2 O and CO2(g)
(c) NaHCO3, H2 (g) and CO2(g)
(d) NaHCO3, H2 O and CO2(g)
_______________ is the final product of glycolysis.
carbon dioxide
ATP
Pyruvic acid
acetyl coA
