新一代科学标准（美国）
Middle School
Middle School共有 10 项标准，每项都有对应的免费练习单。 11–14 岁
说明是我们用自己的话写的简短概述，并非官方原文。
Physical Science: Matter and Its Interactions
MS-PS1-1
Develop models of the atomic make-up of simple molecules and extended structures.
Physical Science: Motion and Stability: Forces and Interactions
MS-PS2-2
Investigate how a change in an object's motion depends on the total force on it and its mass.
Physical Science: Energy
MS-PS3-1
Use graphs and data to describe how kinetic energy relates to mass and to speed.
Life Science: From Molecules to Organisms: Structures and Processes
MS-LS1-1
Gather evidence that living things are made of cells, either one cell or many.
现成的练习单
MS-LS1-2
Model the function of a cell as a whole and how its parts contribute to it.
现成的练习单
MS-LS1-3
Argue that the body is a system of interacting subsystems made of groups of cells.
现成的练习单
MS-LS1-6
Explain the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.
现成的练习单
MS-LS1-7
Model how food is rearranged through chemical reactions to support growth and release energy.
Earth and Space Science: Earth's Place in the Universe
MS-ESS1-2
Model the role of gravity in the motions within galaxies and the solar system.
现成的练习单
MS-ESS1-3
Analyse data to find the scale properties of objects in the solar system.
现成的练习单