Sentences with the word food chain

The sun the moon and the stars appear to move from east to west across the sky because earth rotates from blank to blank

The relative hardness of a mineral can best be tested by a) scratching the mineral across a glass plate b. squeezing the mineral with calibrated pliers c. determining the density of the mineral d. breaking the mineral with a hammer

If an atom has two electrons outside of its nucleus, what number of protons and neutrons must be contained in the nucleus to result in a neutral atom? A. 2 protons, 2 neutrons B. 1 proton, 1 neutron C. 1 proton, 3 neutrons D. 4 protons, 4 neutrons

An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?

How far away is a cliff if an echo is heard 0.486 s after the original sound? Assume that sound traveled at 343 m/s on that day.

2. Weight is a force from gravity pulling down on any object with mass. True False

A 0.9 kg football is thrown with a velocity of 22.0 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.06 seconds. What is the force exerted on the receiver?

water waves carry particles of water in the same direction that the wave is traveling. True or False?

Two objects of different masses are sitting on different balance scales. Object A has a greater mass than object B. How will the weights of the objects compare to each other?

Does an object that feels cold to the touch contain thermal energy Explain your answer