Matter and Scientific Method

Aden has 2 empty plastic 2 liter bottles.  When he blows across the top they make a sound.  How could Aden test to see how bottles with less air produce higher pitch sounds?

• Blow more softly across the top
• Purse his lips more when blowing
• Add water to one bottle
• Add the same amount of water to both bottles

Which location would make a metal bucket the hottest after 4 hours?

• under water
• on a sandy beach
• in the shade of a tree
• under a t-shirt

What is the melting point of water?

• 0° C
• 32° C
• 100° C
• 212° C

What state of matter will you see after 2 hours when a cup of ice is left sitting on a bench on a Texas summer day?

• liquid
• solid
• gas

At room temperature, the element copper can be bent, can be heated very quickly and can hold its own shape.  What state of matter is copper at room temperature?

• liquid
• solid
• gas

What state are nitrogen, oxygen, and carbon dioxide at room temperature?

• liquid
• solid 
• gas

Which of these best describes a liquid?

• When you freeze it, it becomes a gas.
• It takes the shape of its container.
• It holds its own shape.
• If you boil it, it becomes a solid.

What causes water to change from liquid to gas?

• heat
• motion
• light
• vibrations

What is a reasonable estimate of the mass of a pencil top eraser?

• 2 g
• 2 kg
• 20 g
• 200 g

What object has the following physical properties:  no luster, insulator of thermal energy, soft texture, and stretchable. 

• a pencil
• a locker
• a sock
• a cupcake