Why can making observations be a very good way to come up with a scientific question?

Read the question, and then use the drop-down menus to complete the paragraph. What is Earth's atmosphere made of? The most abundant gas in Earth's atmosphere is, followed by, which is needed to burn wood and fuel. The third-most abundant gas is.

In a bag there are 18 pink jellybeans, 22 purple jellybeans, 10 orange jellybeans, and 20 red jellybeans what is the probability you reach in and randomly pull an orange jellybean weitw you're answer as a fraction

A 5kg block of iron is heated to 800degree C. it is placed in a tub containing 2litre of water at 15degree C. Assuming all the water is brought to the boil rapidly calculate the mass of water which boile off.

Write a sentence describing the relationship between volume and time

The force required to stretch a Hooke's-law spring varies from 0 N to 43.2 N as we stretch the spring by moving one end 14.4 cm from its unstressed position. Find the force constant of the spring. Answer in units of N/m.

What kind of waves are lasers worked by?

If the forces acting upon an object are balanced, then an object must a) be moving. b) be accelerating. c) be beginning to slow down. d) be moving at a constant velocity.

Calculate the kinetic energy of a 10kg cart traveling at 4 m/s?

Which visible (400 nm < λ < 700 nm) wavelength (s) will be absent in the reflected beam if the glass has an index of refraction n = 1.350?

Assume that a certain location on the Earth reflects 28.0% of the incident sunlight from its clouds and surface.