observation/inference
mass
volume
density
lab safety
100
An observation is a fact by using these.
What are the 5 senses
100
this is the instrument used to record an object's mass
What is a triple beam balance
100
What is the volume of a brick measuring 10 cm width, 30 cm height, 60 cm length?
What is 18,000 cm3
100
Water's density is 1g/mL. Object X's density is .2g/mL. Will object X sink or float?
What is float
100
Name one item that you should wear if dealing with chemicals.
What is long sleeves, pants, closed toe shoes, goggles.
200
Which of the following is an observation of a cat? a. the cat has fur b. the cat is gray c. the cat is probably 7 years old d. the cat is blind
What is the cat is probably 7 years old
200
Read the mass from the balance to the nearest tenth if the 3 bars read 20g , 200g and 0.25g.
What is 220.3g
200
Using the formula triangle, what is the volume formula?
What is Mass divided by Density
200
A rock has a volume of 100 cubic centimeters and a mass of 100 grams. What is the density?
What is 1g/cm3
200
Where should you dispose of waste from a lab?
Where the teacher tells you to.
300
Which is an inference about a swimmer? a. they swim the backstroke b. they swim in the dead sea c. they swim for 45 minutes d. they float because they are in the dead sea
d. they float because they are in the dead sea
300
Using the triangle formula (mountains are higher than deserts and valleys) tell me the mass formula
What is volume x density
300
A graduated cylinder is at 10mL. When a rock is dropped in, the volume increases to 17mL. What is the volume of the rock?
What is 7mL
300
Why does oil float on water?
What is oil is less dense than water.
300
Why is it not a good idea to throw glass in the garbage?
It could hurt the person who takes the garbage out.
400
True/False (If false, correct the statement): Using a ruler to measure the length of a textbook is making an inference.
What is false. It is making an observation.
400
What is the mass of a ball if the volume is 40mL and the density is 3g/mL?
What is 120g
400
What is the volume if the mass is 50g and the density is 2mL
What is 25g/mL
400
Object A has a mass of 6g and a volume of 3cm3. Object B has a mass of 10g and a volume of 10cm3. Object C has a mass of 10g and a volume of 5cm3. Which two objects have equal densities?
What is objects A and C.
400
What should be done to aisles and desks for a lab and why?
They should be clear so that no one trips.
500
Make an inference of the weather outside.
What is ...
500
Define mass.
What is the amount of matter in an object
500
A bar has a mass of 90g and a volume of 5cm x2cm x3cm what is the density?
What is 3g/ cm3
500
The amount of matter in a space is known as this.
What is density
500
true/false (correct if false) Instead of smelling a chemical reaction, it is better to waft it (wave the smell towards you)
What is true