bacteria growth excretion reproduction investigate cell Organ system function tissue organ oxygen Chloroplast reproduce magnification Organism Learning objectives: • Identify the seven characteristic of living things and use the characteristics to decide whether something is living or non-living things. • Discuss the difference between each of the seven characteristics of life. • Discuss the difference between breathing and respiration Characteristics of life 1. Movement – changing the position of all or part of the body. animals move to : - Find shelter - Find food - Avoid enemies Muscles provides movement for all animals. Note: Plants moves but only some parts. 2. Respiration – is the process getting energy from food, often used oxygen. • Word equation: • Glucose + oxygen Carbon dioxide + water Animals – use oxygen for breathing and release Carbon dioxide Plant – uses carbon dioxide to make food and releases oxygen as waste. Difference between breathing and respiration Breathing Respiration • Movement of air into • Breakdown of food and out of the lungs. to release energy. • Takes place in and • Takes place in all out of the lungs. body cells. 3. Sensitivity – living organisms able to detect/respond to changes in their surrounding. Main human senses: sight, hearing , smell , taste, touch, temperature detection (feeling) Characteristics of life 4. Growth – gets bigger and stays bigger. • Organisms change in size, shape, height and other development that takes place in an organisms Characteristics of life • 5. Reproduction – is the process by which organisms produce offspring. 6. Excretion – is the process of removing waste products from organism’s body. • Waste are released in urine, sweat and carbon dioxide in air that we breathed out. 7. Nutrition - the process by which living organisms take in or make food. (Animals cannot make their food so they take food) (Plants make their own food – photosynthesis) Word equation of photosynthesis: Carbon dioxide + water Glucose + oxygen Testing carbon dioxide in an exhaled air Limewater (calcium hydroxide dissolved in water)– substance used to test the presence of carbon dioxide in exhaled air. If carbon dioxide is present the limewater turns white or milky. The calcium hydroxide dissolved in the limewater reacts with the carbon dioxide. This makes the water turn white or milky. Experiment 1 Testing of carbon dioxide in exhaled breath Testing the presence of carbon dioxide in exhaled air The waste product we release in our breath is carbon dioxide. Group activity • Poster making Basis of grading • Display (organization) - Photographs, drawings, should be simple, well-organized, and carefully explain. Each picture should have an explanation as will as its brief description – 20 points • Creativity and innovation – creative, eye catching and well-designed, appropriate use of color and design – 20 points • Group cooperation – participation of each group member while from the start of making the poster to end. Work should be divided equally. – 20 points Grades and rewards • 1st highest score – 5 way to glow, classwork grade, 10 points for the first quiz. • 2nd - 4 way to glow, classwork grade and 5 points for the first quiz. • 3rd – 3 way to glow and classwork grade • 4th – 2 way to glow and classwork grade • 5th – 1 way to glow and classwork grade.