Grade 9: REVIEW

THIS FOLLOWING TOPICS WILL BE A FORM OF REVIEWER TO ASSIST YOU IN YOUR SCHOOL EXAMINATION AND UNAS. TAKE IT SERIOUSLY.

RESEARCH THE FOLLOWING TOPICS:

1. Characteristics of LIFE

2. The scientific method

3. Cells, Tissue, Organ, Organs system

a. cell function

b. cell parts and functions

c. protoplasm

d. organelles and its function

d. specialized cells

4. Diffusion

5. Osmosis

6. Photosynthesis

7. Nutrients

8. Respiration

a. Aerobic

b. Anaerobic

9. Human skin: parts and function

10. Skeletal System

a. Function

b. Structure

c. Joints

d. Bone growth

11. Muscular System

a. Kinds of Muscles

b. How muscles work

12. Digestive System

a. Digestive Process and its organs

b. Alimentary Canal

c. Digestion in the stomach and small intestine

13. Transport system

a. Parts and Function of the circulatory system

b. Human blood and its parts

c. Blood clotting

d. Blood vessels

e. Human heart

14. Respiratory and Excretory System

a. Breathing

b. How lungs work

c. The kidneys

d. Urinary system

15. Nervous System

a. Parts of a Neuron

b. Central Nervous System

c. Peripheral Nervous System

d. Sense Organs

16. Endocrine System

17. Genetics

18. Animal Kingdom

a. Classification

b. Virus and Bacteria

c. Protozoan

d. Algae

e. Fungi

f. Plant Kingdom

g. Stems, Roots, Leaves

19. Ecology

a. biotic and abiotic factors

b. Ecosystem

GRADE 8: RESEARCH

Research on the following:

1. Give the functions of the nervous system.

2. What is a NEURON?

3. What is a STIMULI?

4. Identify and give the functions of the following:

a. cranial nerves

b. sensory nerve fibers

c. motor nerve fibers

d. dendrites

e. cerebellum

f. myelin sheath

g. spinal cord

h. cerebral cortex

i. medulla oblongata

j. pons

k. pupil

l. axon

m. synapse

n. olfactory nerve

o. optic nerve

p. retina

5. Can a person with normally functioning eyes still be blind? Why or why not?

6. Compare the sense of sight with that of other animals like the cat and the owl. Explain the differences.

7. What are the sense organs?

8. Research about the spinal chord.

9. Research about Luigi Galvani and his contribution to science.

10. How does caffeine affect your nervous system.

11. Research about the parts of the eye and its function.

12. Research about the parts of the ear and its function.

13. Show a diagram of the eye structure and ear structure.

14. How does the sense of smell help an organism to survive.

GRADE 9 1GCSE: PORTFOLIO RESEARCH

EVOLUTION

1. Research on the life and works of Charles Darwin.

2. Define Evolution and give its significance.

3. What is a fossil? Why is it important to evolutionists?

4. Describe how Darwin's voyage aboard the beagle influenced his thoughts about life on earth.

5. Choose one animal and trace the its evolution. Present the changes in the body and living habits.

6. Research on the factors responsible for the extinction of the dinosaurs.

7. Who is Lucy in the evolution?

8. Research on the life and works of Jean-Baptiste de Lamarck.

9. How did Lamarck and Darwin differ in their evolution concepts.

10. What is a lethal gene?

11. How does gene mutation cause variations in organisms.

12. Research about the Galapagos Islands and it s importance.

13. Research about a plant or animal that have undergone variations.

14. Research about the background on Human evolution briefly.

15. What is speciation?

GRADE 9 1GCSE: PORTFOLIO RESEARCH

1. How does hybridization differ from inbreeding?

2. What is mass selection in genetics?

3. Explain and give examples of mutations in plants.

4. What is gene splicing and how is it used?

5. Embryo culture technique

6. Give and describe examples of breeding strategies.

7. Find out the latest news about recombinant DNA technology.

8. Research on the Human Genome Project.

9. News about breakthroughs in genetics.

10. Research about test tube babies.

11. Cloning technology and how will be used by humans. (Example: Dolly the sheep)

GRADE 9 IGCSE: PORTFOLIO RESEARCH

1. Define Inheritance

2. Define terms such as chromosomes, genes, allele.

3. Define the terms haploid and diploid nucleus.

4. Formation of boys and girls in reproduction

5. State the role or job of mitosis in humans

6. Define the terms genotype, phenotype, homozygous, heterozygous,

dominant and recessive.

7. What is a mono-hybrid cross? Show an example.

8. What is variation, discontinued variation and continues variation.

9. Inheritance of Blood groups in humans.

10. Define mutation.

11. Outline the effects of ionizing radiation on

the rate of mutation

12. Describe the role of artificial selection in the production of varieties of animals and plants with increased economic importance.

13. Define natural selection as the greater chance of passing on of genes by the best adapted organisms

14. Explain the importance of natural selection as a possible mechanism for evolution.

15. Describe the development of strains of antibiotic resistant bacteria as an example of natural selection.

GRADE 9 1GCSE: PORTFOLIO RESEARCH

RESEARCH ON THE FOLLOWING:

1. Mitosis and Meiosis. Compare and differentiate.

2. The stages or phases of Mitosis and Meiosis.

3. Diagram or chart of the stages of Mitosis and Meiosis.

4. Agriculturists use plant hormones for the cutting process

5. Plant asexual reproduction

A. Cutting

B. Tissue culture

C. Stem Tuber

D. Budding

6. Allergic reactions from pollens.

7. Test tube babies

8. AIDS information, signs and symptoms and its development for cure.

GRADE 9 1GCSE: HOMEWORK

Homework: This will be submitted next week printed in an A4 paper.

Note: Prepare for a short quiz about this homework.
Research on the following:
1. Superior ovary and inferior ovary of a flower. Show a diagram.
2. The different types of flowers, such as bisexual and unisexual.

3. Flower symmetry.

4. Investigate and state the environmental condition that affects the germination of seeds: water, oxygen and suitable temperature.

5. Investigate and describe the structure of a non-endospermic seed in terms of the embryo (radicle, plumule and cotyledons) and testa, protected by the fruit.

6. State that seed and fruit dispersal by wind and by animals provides a means of colonising new areas.

7. Describe, using named examples, seed and fruit dispersal by wind and by animals.

8. Search for Cleistogamous flowers.