S.1 Bridging Course - Science (Students)

A great review of life science basics! This worksheet covers the scientific method, plant structures, and how animals reproduce.

What do scientists do? How do scientists work? To mark a word click its first letter then click its last. OBSERVATION EXPERIMENT HYPOTHESIS CONCLUSION ANALYSIS Arrange the order of the steps. Write numbers. Step 4 AnalysisStep 2 HypothesisStep 5 ConclusionStep 1 Observation and QuestionStep 3 Experiment Plants need water to grow Match the steps of how scientists work and their thinking! Observation and Question 'Oh! The plant is dying. Why is it happening?' Hypothesis 'I forgot to water the plant. I think this may be related. Maybe plants need water to grow.' Experiment 'I have two plants here. I will treat both plants the same, except I will water Plant A every day but not watering Plant B at all.' Analysis 'After 14 days, plant A is still growing. However, Plant B is dead.' Conclusion 'Now I know! If I don't water plants, plants will die. I can conclude that plants need water to grow!' Reproduction of plants and animals In the biological world, plants and animals reproduce in order to ensure their species (品種) do not become extinct (絶種). Reproduction of plants - Plant growth stages Watch from 2:42 to 5:04 Structure of a flowering plant Flowering plants reproduce by pollination (花粉傳播). Some of them have brightly-coloured flowers and sweet scent, which attract insects for pollination.HINTS: rootflowerleavestempistilpedicelpetalsstamensepal flower stem leaf root petals pistil stamen sepal pedicel Photosynthesis (光合作用) Plants need nutrients to grow. The chlorophyll (葉綠素) in the leaves uses sunlight as energy and produces food using water and carbon dioxide (二氧化碳). During the process, Oxygen (氧氣) is released and sugar is produced and stored in the form of carbohydrates (碳水化合物) for plant growth. This is called photosynthesis.(Watch from 0:46 to 2:52) HINTS:carbon dioxidecarbohydratesoxygenwater carbohydrates water oxygen carbon dioxide Reproduction of animals All animals experience the stages of birth, growth, old age and death. They pass on their characteristics to their offspring when they reproduce. Oviparous animals (卵生): The fertilised eggs (受精卵) of oviparous animals develop outside the mother’s body.Viviparous animals (胎生): The embryo (肧胎) of viviparous animals develops inside the mother’s body. The mother gives birth to the young. Oviparous animals penguins sea horses frogs Viviparous animals bats whales Life cycles of animals