Integrated Science

Classification of Animals Animals are classified into two groups vertebrates and invertebrates Vertebrates Vertebrates are animals with backbone. Examples of vertebrates Fish, mammals, reptiles, amphibians, birds Invertebrates Invertebrates are animals without backbone. Coelenterates  - sea anemone annelids – earthworms, leeches echinoderms – starfish, sea urchins, sea cucumbers mollusks – snails, octopi, squid, snails, clams arthropods – insects, spiders, crustaceans such as shrimp, crabs, lobsters Vertebrates FISH The body of the fish is covered in scales and has fins attached to help it move through the water. Fish breathe using gills which take oxygen out of the water. When male and female fish mate, the eggs often meet the sperm in the water. This is called external fertilization. Examples of fish are the herring, Goldfish, Guppy, Northern pike, Wels catfish, Barramundi, Atlantic cod. AMPHIBIANS   The skin of amphibians is very ...

Classification of Plants Plants can be did into flowering plants(plants that bear flowers)and non-flowering plants ( plants that do not bear flowers) Flowering and  Non Flowering Plants Flowering plants - form seeds inside fruits that develop from the flowers. Flowering plants can be divided into monocotyledons ( with one cotyledon or seed leaf in the seed) and dicotyledon ( with two cotyledon or two seed leaves). Monocotyledons :( one seed ) MONO - one COTYLEDON - seed -flowers often small and pale, eg. Grass, corn -mainly small with thin trunks, eg. Coconut tree -leaves long and thin with parallel veins, eg. Grass -Seeds with one dicotyledon eg. Corn -Root has many small roots, eg. Onion These are examples of Monocotyledonous plants Dicotyledon  Plants DI - two COTYLEDON - seed - flowers often large and colorful, eg. Rose, flame tree - small, medium or large with very wide trunks, eg. Mahoe -leaves oval, h...

Technology Advances for Pregnancies  Premature Babies Most pregnancies last 40 weeks. A baby born before the 37th week is known as a premature or pre-term baby. Medical advances have meant that more than 9 out of 10 premature babies survive, and most go on to develop normally. Test Tube Babies A test-tube baby is the product of a successful human reproduction that results from methods beyond sexual intercourse between a man and a woman and instead utilizes medical intervention that manipulates both the egg and sperm cells for successful fertilization. Fertility Drugs Fertility drugs can be used in the treatment of some women who have been trying to get pregnant but have been unable to do so naturally. They are the main treatment for women who have fertility issues related to polycystic ovary syndrome and men and women who have fertility issues related to hormone imbalances. Surrogate Mothers  It's a woman who gets artificially inseminated with th...

Discussion Why is water important to living things? Please comment  below👇

Welcome grade 8T and 8N We have completed  the Respiratory system and now we are look at WATER AND THE EARTH'S ATMOSPHERE  Pages 164-172  in your text book. Please recap the process involved in the Water Cycle shown  below. What is Ground water  The water that settles under ground is called Groundwater. The largest use for groundwater is to irrigate crops. The area where water fills the aquifer is called the saturated zone (or saturation zone). The top of this zone is called the water table. The water table may be located only a foot below the ground’s surface or it can sit hundreds of feet down. Aquifers  are typically made up of gravel, sand, sandstone, or fractured rock, like limestone. Water can move through these materials because they have large connected spaces that make them permeable. The speed at which groundwater flows depends on the size of the spaces in the soil or rock and how well the spaces are connected. ...

Please answer  the following questions by commenting below. Questions What would happen if someone stops breathing?  What is the function  of the alveoli? Why is the circulatory system important? Why do we eat food? What are the main organs of the digestive system? Identify  three differences between  the male and female reproductive systems. How is each difference important? How are the sense organs important? Why do we need a nervous system? Why do we need the skeletal system? How are (a)the lung and (b) the skin also involved in excretion?

We have been looking at the organ systems, from pages 75-79 of your text. Please watch the video and make brief notes. For reinforcement  Please comment below and list the organ systems of the human body.

Welcome to grades 7, 8 and 9 students, I do pray that you are all keeping safe through this Pandemic. Remember to follow the instruction of the Ministry of Health and Wellness and all other authorities. Bear in mind that Jesus will protect and keep you. This blog was created for you to read and complete school activities. Contents, activities and assignments will be posted for each grade, for Home Economics and Integrated Science.