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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?
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
Paleontology is a field of science that studies prehistoric life. What is one method that paleontologists use to learn about dinosaurs?
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
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?
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
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
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
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?
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
Some scientists use physical models to help them understand the natural world. Which is an example of a physical model?
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
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?
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
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
a computer-generated image
rocket technology that provides enough thrust to escape the pull of Earth’s gravity
a physical model
They use fossils to see how dinosaurs looked and acted
assuming
Deep ocean exploration uses crewed or uncrewed craft called submersibles and technology for taking pictures, gathering sample
They are repeatable.
The trip would take years because the planets are so far away; it would be dangerous because conditions are harsh; it would b
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