小学英语跨学科融合：用英语描述科学实验步骤练习

小学英语跨学科融合：用英语描述科学实验步骤练习 试卷 一、单项选择题（共10 题，每题2 分） 1. When we heat water, it turns into steam. This process is called: A) freezing B) melting C) evaporation D) condensation 2. Which of these is the best container to safely heat a small amount of water for observation? A) A plastic bag B) A glass beaker C) A paper cup D) A metal spoon 3. What do we call the tiny drops of water that form on a cold surface when warm, moist air touches it? A) Ice B) Steam C) Condensation D) Solution 4. To observe evaporation clearly, we should place water in a container and then: A) Put it in the freezer B) Add salt to it C) Leave it in a warm, sunny spot D) Stir it rapidly 5. What safety item should you wear when observing water heating near a heat source? A) Sunglasses B) Safety goggles C) A hat D) Gloves 6. The water level in the container decreases after leaving it out for a few days because: A) The water froze B) The water evaporated C) Someone drank it D) The container leaked 7. Which sense do we primarily use to observe evaporation happening? A) Taste B) Smell C) Sight (seeing the water level drop) D) Hearing 8. What is the gaseous form of water called? A) Ice B) Water vapor C) Liquid D) Solid 9. After heating water and seeing steam rise, what happens if you hold a cold plate above the steam? A) The plate gets hotter. B) Water droplets form on the plate. C) The steam disappears instantly. D) Nothing happens. 10. The main purpose of writing down each step of a science experiment is to: A) Make it look complicated B) Ensure others can repeat it exactly C) Use as many words as possible D) Finish the work quickly 二、多项选择题（共10 题，每题2 分。Select all that apply.) 1. Which items could you safely use to heat a small amount of water for an evaporation observation? (Select all that apply) A) A Bunsen burner (with teacher supervision) B) A hot plate C) A candle D) Sunlight E) A microwave oven (with teacher supervision) 2. What changes might you observe over time if you leave an open container of water in a warm room? (Select all that apply) A) The water level decreases. B) The water temperature increases significantly. C) The water changes color. D) Water droplets may form on the outside of the container if the air is cool enough. E) The water starts bubbling. 3. Which of the following are examples of condensation? (Select all that apply) A) Dew forming on grass in the morning. B) Steam rising from a hot cup of tea. C) Water droplets forming on a cold drink can on a hot day. D) Ice cubes melting in a glass. E) Fog forming on a cool morning. 4. When describing the steps of heating water to observe evaporation, which actions are important to include? (Select all that apply) A) Measuring the initial amount of water. B) Recording the starting time. C) Describing the color of the container. D) Noting the position of the heat source. E) Observing and recording any changes over time. 5. Which safety rules should be followed during a simple evaporation experiment involving gentle heating? (Select all that apply) A) Wear safety goggles. B) Tie back long hair. C) Taste the water to see if it's hot. D) Keep flammable materials away from heat. E) Touch the hot container to check the temperature. 6. What factors can speed up the process of evaporation? (Select all that apply) A) Higher temperature B) Larger surface area of the water C) Stirring the water D) Covering the container E) Lower humidity (drier air) 7. Which words or phrases are appropriate for describing the state change during evaporation? (Select all that apply) A) Liquid turns to gas. B) Water disappears. C) Water vapor forms. D) Water molecules spread out. E) Water becomes solid. 8. What should you do with the equipment after completing the evaporation experiment? (Select all that apply) A) Leave everything on the table for the next group. B) Turn off and unplug any heat sources (if used). C) Clean and dry the containers. D) Put away all materials as instructed. E) Pour leftover hot water down the sink immediately. 9. When writing instructions for "Observing Condensation," which steps are logical? (Select all that apply) A) Fill a glass with ice cubes. B) Add some cold water to the glass. C) Place the glass on a sunny windowsill. D) Wait a few minutes. E) Look for water droplets forming on the outside of the glass. 10. Which of these are essential parts of a clear experiment description? (Select all that apply) A) A list of materials needed. B) The reason for doing the experiment. C) Step-by-step instructions in order. D) Predictions about what might happen. E) Observations recorded during the experiment. 三、判断题（共10 题，每题2 分。Mark T for True or F for False.) 1. ( ) Evaporation only happens when water is boiling. 2. ( ) It is safe to look directly into a container of boiling water. 3. ( ) Water vapor is invisible. 4. ( ) Condensation is the process of a gas turning into a liquid. 5. ( ) Using a lid on a container will make water evaporate faster. 6. ( ) The sun is a major source of heat energy that causes evaporation on Earth. 7. ( ) "Pour 100ml of water into the beaker." is an example of an observation. 8. ( ) "The water felt hot." is an example of an observation using the sense of touch. 9. ( ) When writing experiment steps, using words like "first," "next," and "then" helps make the order clear. 10. ( ) After observing condensation on a cold glass, wiping the water off means the experiment failed. 四、简答题（共4 题，每题5 分） 1. Imagine you are doing an experiment to see how fast water evaporates from two different containers: one shallow dish and one tall glass. Both start with the same amount of water. List the materials you would need and write the first two steps of the procedure. 2. Describe, in 2-3 clear steps using simple English, how you would safely demonstrate condensation forming on the outside of a cold drink can. 3. You observed that water in an open jar disappeared over a week, but water in a closed jar did not. Explain why this happened using the words "evaporation" and "air." 4. Write the next two steps that should follow this beginning: "Step 1: Fill a small pot halfway with cold tap water. Step 2: Place the pot carefully on the stove." 答案 一、单项选择题 1. C 2. B 3. C 4. C 5. B 6. B 7. C 8. B 9. B 10. B 二、多项选择题 1. A, B, D, E 2. A, D 3. A, C, E 4. A, B, D, E 5. A, B, D 6. A, B, C, E 7. A, C, D 8. B, C, D 9. A, B, D, E 10. A, C, E 三、判断题 1. F 2. F 3. T 4. T 5. F 6. T 7. F 8. T 9. T 10. F 四、简答题 1. Materials: Two different containers (e.g., shallow dish, tall glass), water, measuring cup, marker pen, notebook/paper. Steps: 1. Use the measuring cup to pour the same amount of water (e.g., 50ml) into the shallow dish. 2. Use the measuring cup to pour the same amount of water (e.g., 50ml) into the tall glass. 2. 1. Take a clean, empty drink can. 2. Fill the can with very cold water or put it in a refrigerator for a while. 3. Take the cold can out and place it on a table in a warm room. 4. Wait a few minutes and look for small water drops forming on the outside of the can. 3. The water in the open jar evaporated. The water turned into water vapor and mixed with the air outside the jar. The water in the closed jar also evaporated, but the water vapor couldn't escape into the room air; it stayed trapped inside the closed jar above the water. 4. Step 3: Turn on the stove burner to a medium heat setting. Step 4: Watch the water carefully until you see small bubbles forming at the bottom of the pot (or steam rising).