CHILD DEVELOPMENT PEDAGOGY

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GROWTH DEVELOPMENT CHILD

GROWTH AND DEVELOPMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A student places three identical plants in the same type of containers, uses the same type of soil and the same amount of water for each plant. This student places the three plants in three different locations. Plant A is placed in a sunny area, Plant B is placed in a shaded location, and Plant C is placed in the dark room. Each day this student records the growth of each plant. What is the different variable in this investigation?
A
the soil
B
the amount of water
C
the amount of light
D
the growth of each plant
Explanation: 

Detailed explanation-1: -When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer? Independent.

Detailed explanation-2: -Sunlight is the main component of photosynthesis which activates the process therefore plants can only produce glucose only in the presence of sunlight. In the case where a seed is planted in a closed box or bottle, it will not grow into a plant because it is devoid of sunlight therefore it cannot grow properly.

Detailed explanation-3: -Plants need nutrients from the soil, water, and light from the sun to grow and stay alive. If plants did not get water, they would die.

Detailed explanation-4: -All plants require light for photosynthesis, the process within a plant that converts light, oxygen and water into carbohydrates (energy). Plants require this energy in order to grow, bloom and produce seed. Without adequate light, carbohydrates cannot be manufactured, the energy reserves are depleted and plants die.

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