Safety Procedure
True or False.
I should run to get the teacher if I spill something on the floor.
False. You should never run.
What tools do I use if I am trying to determine the volume of an object?
graduated cylinder and beaker
What physical property would I use a magnet to find?
Magnetic
A liquid mixture where one substance is mixed evenly throughout another substance.
The amount of stuff in something; measured in grams (g).
Mass
6 A class is doing an outdoor investigation in a marshy pond area. They are collecting water samples for viewing under the microscope to determine if pollution has impacted the health of the pond area. The water is oily and shiny, and the students are not sure what is in the water. Which of the following is not a good precaution to use while gathering the water samples?
A keeping long hair tied back
B running around the pond
C wearing rubber glove
D not drinking the water
B running around the pond
What do we use the triple beam balance for?
Measuring mass
A. Paper clip
B. Marble
C. Penny
D. Ping Pong Ball
D. Ping Pong Ball
A combination of substances that keep their original properties and can be separated.
Mixture
Anything that has mass and takes up space.
Matter
Student investigated the rapid change to Earth’s surface when a volcanic eruption occurred by using vinegar and baking soda. The teacher instructed the students to demonstrate safe practices during the investigation by—
A wearing open-toed shoes
B using a fire extinguisher
C wearing a football helmet
D using safety goggles
D using safety goggles
Students were asked to measure a set of objects. Which answer choice is NOT a unit of measure that we use in Science?
A grams
B ℉
C milliliters
D centimeters
B
Which of the following describes a solid and liquid.
A. A solid has a definite shape and definite volume, while a liquid has a definite shape but no definite volume.
B. A solid has a definite shape and no definite volume, while a liquid has a definite shape but no definite volume.
C. A solid has a definite shape and definite volume, while a liquid has no definite shape but has a definite volume.
D. A solid has no definite shape and no definite volume, while a liquid has a definite shape but no definite volume.
C. A solid has a definite shape and definite volume, while a liquid has no definite shape but has a definite volume.
To make lemonade, you need lemons, water, sugar and lemonade powder. Lemonade is an example of a ________.
Solution
What is not a true fact about solutions and mixtures?
a. both are mixtures
b. mixtures can easily be separated, solutions usually require heat
c. the solid dissolves in a mixture, but does not dissolve in a solution
d. a mixture keeps its original properties, but a solution does not
c. the solid dissolves in a mixture, but does not dissolve in a solution
When working with a dangerous liquid, what safety practice should you follow?
a. Taste the liquid
b. Wear goggles to protect the eyes
c. Touch the liquid
d. Don't tell the teacher if it spills
B. wear goggles to protect the eyes
When measuring temperature, what tool and unit do I use?
Thermometer and degrees Celcius
A student puts two glasses of liquid outside for three hot days. One glass is full of lemon juice. The second glass is full of water. At the end of three days, he brings the two glasses of liquid inside. He observes that both glasses are only half-full. Which physical property of matter do these liquids have in common?
A Both lemon juice and water are magnetic.
B Both lemon juice and water change their state of matter from liquid to gas when heated.
C Both frozen lemon juice and frozen water sink in liquid water.
D Both lemon juice and water occupy the same amount of space in the freezer.
B Both lemon juice and water change their state of matter from liquid to gas when heated.
With a magnet.
True or false: A mixture is always a solution.
False. A mixture is not always a solution, but a solution is always a mixture.
Tell the teacher
What is the difference between a graduated cylinder and beaker?
A graduated cylinder is more precise.
The look, feel, taste, smell or sound of an object.
a. classify
b. physical change
c. physical properties
d. physical states of matter
c. physical properties
What is the difference in a mixture (trail mix) and a solution (lemonade)?
A mixture can be easily taken apart while a solution usually requires heat.
The different forms that matter can take depending on the temperature and pressure.
a. classify
b. physical properties
c. physical change
d. physical states of matter
d. physical states of matter