Reproduction in flowering plants Pollination Fertilization Seed dispersal Germination All living things need to produce more of their own kind to replace ones that die. Flowering plants reproduce by making seeds. The seeds are made in the FLOWER of … Continue reading →
PHOTOSYNTHESIS Experiment to show that a plant needs light for photosynthesis Photosynthesis is the name of the process by which the plant manufactures sugars. The plant takes CARBON DIOXIDE from the air and WATER from the soil and combines them … Continue reading →
Humans, along with all other mammals, reproduce by sexual reproduction. This means that an egg (from the mother) needs to be fertilized (that means join up with)a single sperm (from the father). Fertilization is internal which means that the egg … Continue reading →
The purpose of the lungs is two-fold: to transfer oxygen to the blood and to remove carbon dioxide from the blood. The tiny air sacs give the lungs a large surface area which makes this transfer of gases more efficient. … Continue reading →
Blood Circulation Heart disease The effects of exercise Our heart is a pump. It pumps blood around the body. Blood is very important to us as it carries important substances like food and oxygen around the body. Actually the heart … Continue reading →
Digestion, Food and diet: what happens during exercise Heart Disease Food enters the body at the mouth The food that we eat contains lots of nutrients. Nutrients are useful chemicals needed by our body. In order to … Continue reading →
Main human body organs BRAIN Controls and coordinates all the major functions of the body. Where all the nerves meet.0 HEART Muscular organ to pump blood around the body. Contains valves to control the direction of blood flow. TRACHEA: a … Continue reading →
There are so many species of organisms we need to have some means of grouping them. In about 1750 Carolus Linnaeus, a Swedish naturalist, devised a system of grouping organisms into categories based on characteristics, such as shape or structure. … Continue reading →
We can place all things into three groups: Alive (living) eg Cow, Grass, mouse, fly Used to Be alive eg wood, fossil, paper Non-living eg stone, glass, metal Living things are able to do several things a non-living thing may … Continue reading →
The Microscope Preparing a slide of cheek cells Using the microscope: Select a low power objective lens Adjust the mirror to produce the best light. Move the objective lens down towards the slide, looking from the side. Focus by moving … Continue reading →
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