Basic Science and Technology
Changes in Animals Change in animals
Names of the young ones of animals
Life cycle of insects
Other developmental or growth changes
Instructional Materials :
- Small fish
- big fish
- water container
- wall charts
- Scheme of Work
- Online Information
- 9 Year Basic Education Curriculum
Previous Knowledge :
The pupils have previous knowledge of
Changes in plants
-Changes in plants e.g Leaf fall
Flower and fruits
Behavioural Objectives : At the end of the lesson, the pupils should be able to
- explain metamorphosis
- say why changes exit in man
- explain the nature of change in plants
- say what the names of some young animals are called
CHANGES IN ANIMALS
Animal are living things, they experience changes too as they grow. Changes in animal begins after birth. Most changes in plants are permanent changes. The changes that take place in animals are called METAMORPHOSIS.
Metamorphosis is the series of changes that occur in the life of a living organisms.
Metamorphosis is a fascinating Science process that describes the dramatic transformation of an organism from one distinct form to another. This process occurs in various species, but it is most commonly associated with insects, particularly butterflies and moths.
There are two types of metamorphosis which are
- Complete metamorphosis that involves four series of changes in the growth of an insect.Butterflies, moths, beetles, flies and bees have complete metamorphosis
- incomplete metamorphosis involves three stages of growth in an insect. Insects that have an incomplete metamorphosis are bugs, grasshoppers, cockroaches, termites, praying mantises, crickets, and lice
Importance of Metamorphosis: Metamorphosis serves several important ecological purposes. It can reduce competition for resources between the immature and adult stages of an organism. Additionally, it helps insects adapt to different environmental conditions as they grow and develop.
Certainly! Here are 15 fill-in-the-blank questions with multiple-choice options (a, b, c, or d) on the topic of metamorphosis:
1. Metamorphosis is a process of __________ transformation in some animals.
2. Butterflies and moths undergo __________ metamorphosis.
3. Incomplete metamorphosis consists of __________ stages: egg, nymph, and adult.
4. The larva in complete metamorphosis often looks like a __________.
a) miniature adult
b) colorful flower
5. The pupa stage is also known as the __________ stage.
6. In the egg stage, insects lay __________.
7. The larva stage focuses on __________ and growing.
8. During metamorphosis, insects may shed their outer __________.
9. The chrysalis or cocoon is a __________ casing.
10. Adult insects are often __________ and have wings.
11. Metamorphosis helps insects __________ to different conditions.
12. In complete metamorphosis, the larva becomes a completely different __________.
13. The pupa stage is like a __________ where changes happen.
Examples of changes in Animals
- Change in body temperature like Lizard.
- Changes in size.
- Increase in height.
- Changes in skin colour like chameleon.
- Changes from child to adult.
- Some gives birth to young one.
- Change in Body Temperature like Lizard:
- Lizards are cold-blooded animals, which means their body temperature changes with the temperature of their surroundings. They bask in the sun to warm up and hide in shade to cool down.
- Changes in Size:
- Many animals go through changes in size as they grow. For example, a puppy grows into a much larger dog over time.
- Increase in Height:
- Animals like giraffes are born small and grow to be very tall. This is an increase in height as they mature.
- Changes in Skin Color like Chameleon:
- Chameleons are known for their ability to change the color of their skin. They do this for camouflage, communication, and regulating body temperature.
- Changes from Child to Adult:
- Many animals, including humans, go through stages of development. A caterpillar, for instance, transforms into a butterfly. This change from a juvenile form to an adult form is called metamorphosis.
- Giving Birth to Young Ones:
- Some animals, like mammals, give birth to live young ones. For example, a cat gives birth to kittens
1. Lizards are known for their ability to change __________ like body temperature.
2. Many animals go through __________ as they grow, becoming larger or smaller.
c) changes in temperature
d) changes in size
3. Giraffes experience an __________ in height as they grow into adulthood.
4. Chameleons are famous for their ability to change __________.
c) skin color
5. The transformation of a caterpillar into a butterfly is an example of a change from __________ to __________.
a) adult, senior
b) child, adolescent
c) baby, teenager
d) child, adult
6. Some animals, like mammals, give birth to __________.
b) live young ones
7. Frogs undergo a change from tadpoles to adult frogs, which is a type of __________.
8. Salmon fish go through a remarkable journey where they change from freshwater to saltwater habitats and back. This is called __________.
9. Some birds, like penguins, undergo changes in their feathers to adapt to __________ environments.
10. Snakes periodically shed their old skin, allowing for __________ growth.
11. The development of tadpoles into frogs is a classic example of __________.
12. Insects like grasshoppers go through __________ metamorphosis, where they gradually change from nymph to adult.
13. Kangaroo babies, called joeys, are carried in their mother’s pouches after __________.
14. Some animals, like the starfish, have the remarkable ability to regenerate lost body parts, demonstrating __________ changes.
15. The transformation of a tadpole into a frog includes changes in __________, limbs, and internal organs.
Names of some Animals and their young ones.
|| Tabby cat (Queen)
|| queen, worker
||Kit or Pup
1. A baby dog is called a __________.
2. The young one of a cat is a __________.
3. A baby horse is known as a __________.
4. The offspring of a cow is called a __________.
5. A baby sheep is called a __________.
6. The young one of a pig is a __________.
7. A baby duck is known as a __________.
8. The offspring of a chicken is called a __________.
9. A baby swan is called a __________.
10. The young one of an elephant is a __________.
11. A baby kangaroo is known as a __________.
12. The offspring of a lion is called a __________.
13. A baby tiger is called a __________.
14. The young one of a giraffe is a __________.
15. A baby seal is known as a __________.
The topic is presented step by step
The class teacher revises the previous topics
He introduces the new topic
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
- The young one of Pig is………………………….
- The young one of Lion is………………………..
- a baby goat is called a…………………………..
- a baby cat is called a………………………………..
- a baby fish is called a ,,,,…………………………..
- a baby horse is called a…………………………
- a baby dog is called a ……………….
Say if each of the following is a temporary change or permanent change
- Cassava turns to garri……..
- Alive person turns dead……
- Catterpillar turns butterfly…..
- Day turns to night……..
- Boiling hot water turns to cold water….
- Burnt on someone skin…..
- If you cut your hair in the barber’s shop and it grows again….
- Cut your fingernails and it grows again……
- Four years old boy has his tooth removed and the tooth grows again……
- Tribal marks on the face of ibadan woman. Ìyá ibadan……..
The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.
The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.
He or she does the necessary corrections when and where the needs arise.
Prepare for the next lesson by reading about changes in non living things