An element is a substance that cannot be broken down chemically into

electrons.

another substance.

o C. atoms.

OD. protons.

An experiment is done to compare the initial speed of bullets fired from different handguns: a 9.0 mm and a. 44 caliber. the guns are fired into a 10-kg pendulum bob of length l. assume that the 9.0-mm bullet has a mass of 6.0 g and the.

The fact that parts of the sun spin at varying speeds is referred to as differential rotation. true false

who described atoms as having a positive nucleus with electrons that have different energies at different distances from the nucleus.

Explain why some solar eclipses are total and some are annular.

Can you talk in space?

Students will explain, distinguish the difference between the 4 states of matter

Name one way that a mixture can be separated

The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist attractions. On average, the river has a flow rate of about 300,000 L/s. At the gorge, the river narrows to 20-m wide and averages 20-m deep.

Name six processes that are often involved in scientific inquiry.

What happens to the ball's velocity while the ball is traveling upwards?