Paleontology is a field of science that studies prehistoric life. What is one method that paleontologists use to learn about dinosaurs?
Physicists study matter, energy, and forces. Physicists use many different methods as they search for evidence. Which is NOT a method they would use in their pursuit of scientific explanations?
Chemistry is the study of the composition of matter and its properties. Experimentation is the primary method by which chemists pursue scientific explanations. How do they know if the results of their experiments are valid?
Scientists use models to help them understand how the natural world operates. These models can take different forms. However, all models have one limitation. What is that limitation?
Some scientists use physical models to help them understand the natural world. Which is an example of a physical model?
Building models can help scientists make discoveries about the natural world. For example, scientists used cardboard cutouts of the chemical substances that make up the molecule responsible for heredity. This molecule is known as DNA. The scientists
Uncrewed spacecraft have visited every planet in the solar system, but the only celestial body visited by astronauts was the Moon. Which group of statements best explains why uncrewed spacecraft and not astronauts have visited the planets?
People have traveled into space many times since 1961, when a Russian cosmonaut in a tiny space capsule went into orbit around Earth. Since then, people have traveled into space in larger vehicles, including the space shuttle. Which kind of technolog
In addition to going into space, scientists have explored the deep ocean. Which statement best explains how the technology used to explore the deep ocean is similar to the technology used to explore space?
Environmentalists are very concerned about the destruction of rainforests for houses, farms, and mines. A group of environmental scientists want to monitor how much of the Amazon rainforest is cut down over a five-year period. Which two technologies
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