Where does sound come from?, From silent objects, From vibrating objects, From light sources, How do plants make their own food?, By eating insects, Through a process called photosynthesis, By taking food from the soil, Which number represents "One hundred million"?, 1,000,000, 10,000,000, 100,000,000, Which material is a good thermal conductor (dẫn nhiệt tốt)?, Plastic, Metal (like iron or copper), Wood, What do animals need to survive?, Only fire and clothes, Only toys and sunlight, Food, water, and air, In a bar chart, what does a taller bar usually represent?, A smaller amount, The color of the data, A larger amount, How does sound travel to our ears?, It travels through waves in the air, water, or solids., It travels through light., It doesn't travel; it stays in one place., Which instrument is used to measure temperature?, Ruler, Thermometer, Scale, What happens to a metal spoon if you put it in a cup of hot water?, It becomes cold., It stays the same temperature., It becomes hot because of thermal conduction., Look at the number 123,456,789. Which digit is in the hundred millions place?, 1, 3, 9, What do plants need from the environment to grow?, Soda and pizza, Milk and bread, Air, water, and sunlight, Why do some animals hibernate in winter?, To find more food, To save energy when it's cold and food is scarce, To play with friends, Can sound travel through water?, Yes, it can., Only if the water is hot., No, it cannot., In the number 987,654,321, what is the value of the digit 9?, 900,000,000, 90,000,000, 9,000,000, When you touch an ice cube, heat travels from _______ to _______., the ice / your hand, your hand / the ice, the air / the ice, Which of these is a producer (makes its own food)?, A lion, A green plant, A mushroom, What part of the animal helps it stay warm in the cold?, Long tails, Thick fur or blubber, Sharp teeth, Temperature is a measure of how _______ or _______ something is., hot / cold, fast / slow, loud / quiet, What happens to water when its temperature decreases to 0°C?, It starts to boil., It freezes and turns into ice., It turns into water vapor., Find the mean of these four numbers: 40, 40, 50, and 70., 40, 50, 200.

Math - Science 4

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