States of Matter
What are the three states of matter?
Solid liquid gas
Name 3 things that will dissolve in water
sugar salt powdered drink mix just examples jello
Give an example of a chemical change
baking a cake example
Give an example of a physical change
tearing paper example, ice melting
What tool would you use to separate iron fillings and sand?
magnet
How would you measure the volume of a solid?
water displacement method
What are 3 things that will not dissolve in water
sand, beans, metal,
What are a two signs that a chemical change has occurred?
odor, color change, temperature change, gas production, fizzing sound
What are a two signs that a physical change has occurred?
melting, freezing. evaporating condensing dissolving
What tool would you use to separate pebbles and sand
strainer or seive
Describe a solids mass, volume and shape
definite mass
definite volume
definite shape
What 3 things you can do to speed up the dissolving rate?
increase surface area by cutting it up or busting it up, stirring or shaking
using hot water
Can you give an example of a chemical change that happens in your everyday life?
lots of examples
Can you give an example of a physical that happens in your everyday life?
Lots of examples
What tool would you use to separate Skittles and what property would you use to separate them?
forceps or tong and property is color
Describe a liquids mass, volume and shape
definite mass
definite volume
no definite shape
What happens to the sugar particles when you stir it into a glass of water, and why does it seem to disappear?
It dissolves and breaks down making a see through liquid called a solution
Can you give 2 examples of a chemical change that happens in your everyday life?
How do you know each one is a chemical change?
Lots of examples
evidence: color change odor fizzing sound, gas production or bubbles, temperature change
Can you give 2 examples of a physical change that happens in your everyday life?
How do you know each one is a physical change?
Lots of examples
melting, freezing. evaporating condensing dissolving
What are 4 tools you can use for separating mixtures?
magnet water strainer or seive filter tongs or forceps
Describe a gas mass, volume and shape
definite mass
no definite volume
no definite shape
Carl is cooking with his father. The recipe tells them to add butter, oil, salt, and noodles to a pot of boiling water and stir. Which of the four ingredients will dissolve in the water?
A. butter
B. oil
C. salt
D. noodles
C
Can you give 3 examples of a chemical change that happens in your everyday life?
How do you know each one is a chemical change?
Lots of examples
evidence: color change odor fizzing sound, gas production or bubbles, temperature change
Can you give 3 examples of a physical change that happens in your everyday life?
How do you know each one is a physical change?
Lots of examples
melting, freezing. evaporating condensing dissolving
A student wants to remove salt from a mixture of sand and salt. He adds water to the mixture. Which of the following best explains why he would add water to begin separating the mixture?
A. Salt dissolves in water.
B. Sand dissolves in water.
C. The water freezes to salt.
D. The salt floats on the top of water.
A