Ques: Q: Depending on the surrounding conditions, normal matter usually exists as one of three phases: solid, liquid, or this? Choices: - fluid - crystal - ice - gas A:
Ans: gas

Ques: Q: What 2 things keep polar bears warm in their arctic ecosystem? Choices: - hibernation, thick fur - colourful fur , blubber - camouflage, blubber - thick fur, blubber A:
Ans: thick fur, blubber

Ques: Q: An unbalanced force on an object in motion causes what? Choices: - agitation - velocity - vibration - acceleration A:
Ans: acceleration

Ques: Q: What process typically occurs to metal exposed to outside elements? Choices: - shrinkage - extraction - explosion - corrosion A:
Ans:
corrosion