Vocabulary
What is mass?
the amount of matter an object has.
What is a solid?
is a substance with a defined shape and volume. The atoms in solid are packed tight together.
Which change of state is the result of matter cooling? (TEKS 3.5C)
A. A gas becomes a liquid
B. A solid becomes a liquid
C. A liquid becomes a gas
D. A solid becomes a gas
A. A gas becomes a liquid
What is a physical change? List some examples.
is where in which the shape, size, or state of the matter changes, but the substance is still essentially the same.
Examples: folding, tearing, and cutting are all physical changes.
What do we use to measure volume that is a liquid?
a graduated cylinder in ml (milliliters)
What is volume?
The amount of space that matter takes up.
What is a liquid?
is a substance that has a defined volume but no defined shape. The atoms in a liquid are packed less tight, but are still close together.
When you heat up liquid what does it do?
It will boil and evaporate
What is a chemical change? List some examples.
those where one or more substances are combined to produce a new substance. (cannot be changed back)
Examples: rusting, burning, bananas turning black.
What do we use to measure mass?
a pan balance in grams or kilo grams
What does evaporate/evaporation mean?
the process of liquid changing into a gas from the process of heating.
What is a gas?
What does it mean to dissolve something?
Dissolve- mixed but can not be separated.
What are physical properties of an object?
size, shape, texture, hardness
What do we use to measure volume that is not a liquid?
metric ruler (length x width x height)
What does condense mean?
to make smaller and more compact (tight)
States of Matter with water, draw a picture (tell me how it changes between each state).
(Picture)
What is a solution?
Solution: something that is evenly mixed. Is the end result of dissolving.
Sarah planned the descriptive investigation described below:
- Step 1: Measure 2 tablespoons of baking soda.
- Step 2: Measure 1/2 cup of vinegar.
- Step 3: Mix the baking soda and the vinegar
- Step 4: Record observations.
In which step will a new kind of matter form? (TEKS 3.2A)
Step 3
In the table given find the final water level after the liquid has expanded through volume. (TEKS 3.2)
Starting water level + Volume of object = final water level
110 mL
What does it mean to estimate?
to calculate the approximate amount, size, or value of.
Which one is a solid? Which one is a liquid? Which one is a gas?
Milk- liquid
TV- solid
Helium in a balloon - gas
What is a mixture?
A mixture is two or more substances that are combined without changing any of them.
What kind of change has heating eggs caused? (TEKS 3.5C)
There was a chemical change because different substances have formed from the original substance that you cannot change back.
Patty measures the volume of four objects. She places each object into a graduated cylinder of water, one at a time. She measures the starting water level and final water level each time. Patty constructs the table below to show some of her results.
For which object with Patty record the largest volume? (TEKS 3.2C)
Final Volume - Starting Volume = Volume of the object
Golf ball