23,105 questions and answers — page 19 of 1156
📕 Print the encyclopedia / PDFLearn about Science Quizzes · Secrets of the Human Body 🫀 · Math Geniuses: Beginner
Answer: To give them oxygen and protect them from extreme cold and heat
💡 Space has no air to breathe and its temperatures are harsh, so the spacesuit carries oxygen and protects the astronaut like a small spacecraft made to fit.
Answer: Gravity
💡 Gravity is a force that pulls objects toward Earth, which is why everything we throw up comes falling back down.
Answer: Venus
💡 Venus is called Earth's twin because it is close to Earth in size and mass, but its surface is extremely hot and cannot support life.
Answer: Mercury, then Venus, then Earth, then Mars
💡 These are the four rocky planets close to the Sun: Mercury first, then Venus, then Earth, then Mars.
Answer: Neptune
💡 Neptune is the eighth planet and the farthest from the Sun, so it needs about 165 Earth years to complete one trip around it.
Answer: Because water covers more than two-thirds of its surface
💡 Earth looks blue from space because oceans and seas cover most of its surface.
Answer: 49
💡 The pattern goes up by 5 each time: 44 + 5 = 49.
Answer: 88
💡 The pattern goes up by 8 each time: 80 + 8 = 88.
Answer: 70
💡 The pattern goes up by 11 each time: 59 + 11 = 70.
Answer: 94
💡 The pattern goes up by 11 each time: 83 + 11 = 94.
Answer: 18
💡 The pattern goes up by 2 each time: 16 + 2 = 18.
Answer: 43
💡 The pattern goes up by 7 each time: 36 + 7 = 43.
Answer: 43
💡 The pattern goes up by 3 each time: 40 + 3 = 43.
Answer: 13
💡 The pattern goes up by 3 each time: 10 + 3 = 13.
Answer: 31
💡 The pattern goes up by 6 each time: 25 + 6 = 31.
Answer: 71
💡 The pattern goes up by 7 each time: 64 + 7 = 71.
Answer: 74
💡 The pattern goes up by 12 each time: 62 + 12 = 74.
Answer: 28
💡 The pattern goes up by 5 each time: 23 + 5 = 28.
Answer: 65
💡 The pattern goes up by 6 each time: 59 + 6 = 65.
Answer: 51
💡 The pattern goes up by 2 each time: 49 + 2 = 51.
