Which of the following represents a covalent compound?

KF

NaCl

SBr3

Mg2O

1. Differentiate between heat and temperature. Use an everyday situation to supplement your answer. 2. Write down 3 ways in which temperature can be described.

Which state of matter has the highest density

Which of the following bestdescribes how energy is transferred in a food web?

Weight measures: a) the amount of mass in an object b) how big an object is c) gravity's effect on an object d) how dense an object is

The cup has a mass of 0.025 kg and accelerated at a rate of 5m/s. how much force is the wind exerting the cup?

Explain what happens when a ferromagnetic material is made into a permanent magnet.

You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the diagram indicateas having the most recent common ancestor

Estimate the length of the neptunian year using the fact that the earth is 1.50Ã108km from the sun on average.

Identify one type of electromagnetic energy that has a shorter wave length than green light

Any object with mass exerts a force on any other object with mass. This force is called?