Tools and lab safety
Magnetism
What will cause ice to change to water?
Adding heat to the ice
Give me an example of a solution. Why is it a solution?
open ended
What does the Law of Conservation of matter say?
Matter is neither created nor destroyed, it just changes form.
What does volume measure in science?
It measures how much space an object takes up.
What do we use to measure the mass of an object?
Balance
When we mix soil and water, what property stays the same?
A) texture
B) particle shape
C) mass
C) mass
If I mix salt and water will it form a mixture or a solution? How do you know
It will form a solution because the salt will dissolve into the water.
If I mix milk and sugar and it turns into a solution. how can you prove the sugar is still there?
You can prove the sugar is still there by weighing the milk and sugar before and after, it should have the same mass.
How do we find the volume of an object?
Subtract new volume from original volume.
If I want to test how fast something gets cold what TWO tools would we need?
A. Thermometer and balance
B. Thermometer and timing device
C. Hand lens and magnet
B. Thermometer and timing device
Which is an example of a physical property?
A. Burning wood
B. Rusting metal
C. Color and shape
D. Baking a cake
C. Color and shape
open ended
When you mix sand and water, what happens to the total amount of matter?
A. It disappears
B. It increases
C. It stays the same
D. It becomes smaller
C. it stays the same
If I have 10 mL of water in a graduated cylinder and drop a rock into it and the water rises to 15 mL? How would I find the volume? What is the volume of the rock?
You subtract 15 (new volume) from 10 (old volume) the volume of the rock is 5mL
Why do we wear safety goggles during experiments?
A. To look cool
B. To protect our eyes from spills and splashes
C. To help us see better
D. Because they are part of the uniform
b. To protect our eyes from spills and splashes
Which tool do we use to measure temperature?
A. Balance
B. Ruler
C. Thermometer
D. Magnet
C. Thermometer
What is a mixture?
A mixture is a combination of 2 or more objects.
How can you show that matter is conserved when sugar dissolves in water?
A. Measure the total mass before and after mixing — it stays the same
B. Taste it
C. Watch it disappear
D. Add more sugar
A. Measure the total mass before and after mixing, it stays the same
If I have 25 mL of water in a graduated cylinder, and I add a pencil in the water, and the water rises to 35 mL. What is the volume of the pencil?
The volume is 10mL.
Why is it important to follow directions during a lab?
A. To finish faster
B. To keep everyone safe
C. To win a prize
D. To make the teacher happy
B. To keep everyone safe
Which object has more mass — a marble or a bowling ball? How do you know?
A. Marble
B. Bowling ball
C. They have the same mass
D. You can’t tell
B. Bowling ball because it weighs more .
What do we call a special type of mixture? Why is it special?
Solution. it is special because all of the substances dissolve and all look the same/alike.
If I mix 1/2 cup of olive oil and 1/4 cup vinegar into a cup, and after mixing it the oil separates from the vinegar, does the amount of vinegar and oil stay the same or changes?
The amount of vinegar and oil stays the same.
If I have a graduated cylinder with 10 mL and drop a rock into the graduated cylinder, how would I find the volume of the rock?
subtract the new amount of water after dropping the rock from the 10 mL.