Science 6

When the spring is compressed, the kinetic energy of the spring will be transferred to what energy? (Physics). Electrical energy. Heat energy. Chemical energy. Wind energy. Potential energy.

John jumps straight on a bus which is traveling, Amy sees John outside the bus. From the perspective of Amy, John jumps towards which direction? (Physics). Forward. Straight upward. Backward. Uncertain. None of the above.

There is a mirror that is bigger than Amy. When she stand in front of the mirror, what should the proportion of the image and her be? (Physics). The image is bigger than her. The image is smaller than her. They are in same size. There are no image reflected in the mirror. Uncertain.

Why balloons can fly on the sky? (Physics). They are light. They are heavy. They do not be affected by gravitational force. The gas inside the balloon have higher density than air. The gas inside the balloon have lower density than air.

What kind of glasses should a long-sighted person wear? (Physics). Convex mirror. Plane mirror. Concave mirror. Convex lens. Concave lens.

Tadpole belongs to which animal classes? (Biology). Fish. Amphibians. Reptiles. Birds. Mammals.

Which muscles on human will not fatigue? (Biology). Leg muscles. Heart muscles. Eye muscles. Biceps. Triceps.

Which organ of human below is not a part of digestive system? (Biology). Kidney. Mouth. Stomach. Liver. Small Intestine.

What environment benefits the growth of bacteria? (Biology). Desert. Snowy Mountain. Volcano. Polar Region. Tropical Forest.

Which of the following food contains vitamin C? (Biology). Carrots. Spinach. Rice. Kiwi fruit. All of the above.

What is the highest temperature of water? (Chemistry). 100°C. 100°F. 274°C. 0°C. infinitely large.

Which element below is in gas state at room temperature? (Chemistry). Hydrogen. Carbon. Titanium. Sodium. Lead.

Which three elements are necessary for starting a fire? (Chemistry). Air, heat and fuel. Carbon dioxide, heat and wood. Oxygen, heat and wind. Oxygen, heat and fuel. Carbon dioxide, heat and wind.

Which metal is usually used to make beverage cans? (Chemistry). Copper. Aluminum. Gold. Lithium. Platinum.

Which of the following gases can perform the function of sterilization? (Chemistry). Helium. Chlorine. Hydrogen. Carbon Dioxide. All of the above.

What is the percentage of oxygen in the air? (Integrated Science). 21%. 25%. 50%. 66%. 100%.

Why apple changes its colour after cutting and putting it on the table for a few minutes? (Integrated Science). Because the apple is contaminated by bacteria so the colour changes. Because the apple is exposed to the oxygen in the air and it oxidizes. Because the apple become old so the colour changes. Because apple is brown in colour originally. Because the cell is damaged by the knife so the brown pigments in the air can get inside the cell and the colour changes.

Who was the first human to step on the moon? (Integrated Science). Stephen Hawking. Neil Armstrong. Galileo Galilei. Yang Liwei. Albert Einstein.

When there is a fire, why should we try to stay low and move near the ground? (Integrated Science). Because hotter gases will raise so the smoke will be in a higher position and there will be less smoke near the ground. Because we will be able to run faster if we stay lower and near the ground. Because there might be lots of things on the ground. Therefore, we can see them better when we stay low. Because the fire will spread upward. Because it is cooler near the ground.

Why should we fully cook the food before eating them? (Integrated Science). To make the food taste better. To make the food contain more nutrients. To make the food become warmer and provide more energy for the body. To kill the bacteria and other microorganisms that is inside the food. It is not necessary to cook the food fully.