Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Living things show movement. Animals move from place to place to find food and shelter, while plants show slow movements, such as a sunflower turning towards the Sun.
Living things grow over time. For example, a small seed grows into a large tree, and a human baby grows into an adult.
All living things need food and water to live and get energy. Green plants prepare their own food using sunlight, water, and (Carbon Dioxide).
Living things breathe to stay alive. Most animals take in (Oxygen) and give out (Carbon Dioxide).
Living things respond to changes in their environment. This is called sensitivity. For example, we move our hand away if we touch something hot.
Living things reproduce, which means they produce young ones of their own kind. Birds lay eggs, while humans give birth to babies.
Living things get rid of waste from their bodies through a process called excretion.
Non-living things do not breathe, eat, grow, move on their own, feel, or reproduce.
📐Formulae
💡Examples
Problem 1:
A robot can move and talk. Why is it still classified as a non-living thing?
Solution:
A robot is a non-living thing because it does not satisfy all the characteristics of life.
Explanation:
While a robot moves, it does not move on its own (it needs a battery or electricity). It does not grow in size, it does not breathe , and it cannot reproduce to create 'baby robots' naturally.
Problem 2:
Identify if a 'Seed' is living or non-living.
Solution:
A seed is a living thing (in a dormant state).
Explanation:
A seed may look like a non-living stone, but when given water, soil, and sunlight, it grows into a plant. Since it has the potential for growth and life processes, it is considered living.