What are aliens?, Living things from another planet, Animals from Earth, Have scientists found aliens?, Yes, they have., No, they haven’t., Which planet has life that we know about?, Earth, Mars, Aliens in cartoons come from our ______., imagination, classroom, What do most living things need to survive?, Water, Toys, Does Earth have a lot of liquid water?, No, Yes, More than half of Earth is covered in ______., water, sand, What is the layer of gases around Earth called?, atmosphere, ocean, Which gas do many living things need to breathe?, Oxygen, Smoke, What can grow in Earth’s soil?, Spaceships, Food, Have people visited other planets?, Not yet, Yes, many times, Scientists think there may be more ______ planets in space., Earth-like, candy-like, Do we know for sure that aliens do not exist?, No, Yes, For now, we can ______ what aliens might look like., remember, imagine

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