1) what is Gravity a) a force that push objects away from earth b) is the force by which a planet or other body draws objects toward its center. 2) The force of gravity keeps all of the planets in orbit around the _____. a) moon b) ocean c) sun 3) Objects with _______ mass have more gravity. a) more b) less 4) Gravity also gets weaker with __________. a) water b) distance 5) The closer objects are to each other, the _________________their gravitational pull is. a) weaker b) stronger 6) Weight determines how__________________an object or quantity of a substance is. a) heavy b) light 7) A body with ____________weight is considered heavy, like an elephant or a bus. a) less b) more 8) A body of _____________ weight is called light like A feather, a leaf, and a bubble are all light in weight. a) light b) heavy 9) The weight of an object can be measured using different types of ________________. a) rulers b) scales c) measuring cups 10) A scale or balance is a device used to measure _____________________. a) height b) lenght c) weight

Gravity

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？