More Matter

During a winter camping trip, Priya and Olivia are trying to figure out which type of water will freeze faster. Priya has a bottle of fresh water, while Olivia has a bottle of salt water. They wonder, which has a lower freezing point?

• fresh water

• salt water

• they are both the same

• water never freezes

During a science experiment, Emma mixed sugar into water to create a sweet solution. Which is true of this solution?

• They are easily separated using density.

• Solutions are always gases and never solids or liquids

• it is easily separated with a sieve

• all parts are evenly mixed

Which will evaporate more quickly.

• 
• 
• 
• 

Isla is trying to dry her wet clothes outside on a sunny day. She notices that the clothes are drying quickly. However, she wonders what could slow down the evaporation process of the water in the clothes.

• added heat

• removing heat

• a fan blowing air

• direct sunlight

Mass and Volume are the same thing.

• True

• False

Water forms on the outside of my Coke can due to:

• evaporation

• condensation

• precipitation

• perspiration

I have 38 grams of Koolaid and 10 grams of ice. Half of the ice melts. You now have

• 48 grams Koolaid

• 43 grams Koolaid

  5 grams Ice

• 10 Grams ice

  38 grams Koolaid

• 48 grams ice

a sealed jar holds an ice cube. the container is left in a warm room until the ice melts completely into water.

What will happen to the mass inside?

• increases because water is heavier than ice

• decreases because the ice melts

• stays the same because no mater was added or removed

• It remains the same due to the volume of the jar.

I dissolve 20 grams of sugar into 150 grams of tea. Which is true?

• This demonstrates conservation of mass or matter

• The mass changes due to a chemical reaction taking place.

• The sugar disappears so the mass does as well

• The total mass is 170 grams

Robert puts a wet towel in a large sealed bag and places it on a scale. After the towel sits for a period of time, it dries completely. The bag is still sealed and the scale has the same reading. What does this show about matter?

• water changed to a gas, but the mass stayed the same

• the towel weighed less, so mass was lost

• matter was destroyed during the evaporation process

• The water left the sealed bag and went into the environment