lab safety
true or false: It is okay to have hair down if we aren't working with fire
false: chemicals could still get in hair
To be considered a good scientific question, the questions SHOULD be what two things?
1. testable
2. measurable
describe the independent variable?
This is the one we are changing in the experiment
A zebra running away from a lion is an example of which trait of life?
responding to stimuli
These are used for long term energy
Lipids
what is the correct item to use if a student is on fire
fire blanket
" the pencil is 4 cm long" This is an example of what type of observation
quantitative uses a number for the description
Describe the dependent variable?
The one we observe
DOUBLE POINTS FOR TEO ANSWERS
what is the unit for volume in CM?
what is the standard unit for length?
cm3
meter
What is the building block of a protein?
Amino Acid
What item is allowed to be in the isle way?
* lab gear
*teacher
*cords
teacher, to help students
True or false: a scientific question should be based on natural phenomena
true.
A student was swimming at different depths and seeing how the water changed temperature. Identify the independent and dependent variable?
Temp : dependent
This type of bond connects neighboring water molecules
a hydrogen bond
What is the building block of a carb
monosaccharide
most lab accidents
a. cannot be prevented
b. are caused by a lab partner
c. could probably be prevented if we follow the rules
C. prevented if we follow the rules
"Miss Ballard is a nice teacher"
Is the statement above a good or bad scientific claim? Why?
Bad, uses opinion
A student was swimming at different depths and seeing how the water changed temperature. Identify some constants in the experiment
The size of the pool, the student, the thermometer used
What are the three main properties of water?
T- transportation
I- insulation
C- chemical reactions
What is the building block of nucleic acid? What is an example of nucleic acid?
Nucleotides. DNA is an example
if you do not understand something in a lab the FIRST thing you should do is
ask the instructor
A factor that changes in an experiment can be tested and measured.
What is a control group?
A control group is used to compare. For example if we had TWO plants. ONE plant we are going to play music for, and the other plant we DO NOT play music for. THE PLANT WITH NO MUSIC is the control group because we are going to compare the music plant to the normal plant
What tool would be used to measure a first grader?
2. for 100 extra points, what is the bigger, a gram or kilogram
meter stick, kilogram is larger than a gram
List all four macromolecules, an example of each, and all the elements in each one
carb : bread / CHO
lipid: oil / CHO
protein: Chicken/ CHON
nucleic acid :DNA / CHONP