A
Science came from the Latin word scientia. What is the meaning of scientia?
Knowledge
What is the series of steps use to solve problems?
Scientific Method
True or False
All things that occupy space and have weight and volume are considered as matter.
True
Solid are usually more soluble in liquids at a higher temperature.
True
What kind of chemical element hates to be a follower?
Lead
True or False
All materials found in the environment are composed of the simplest form of matter called compound.
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. Which is the dependent variable in this experiment?
The number of plants in the water
What type of solution can still dissolve more solute in the given amount of solvent at a given temperature?
Unsaturated Solution
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. Which is the independent variable in this experiment?
The amount of salt in the water
What two periodic elements, when combined, heal?
Helium and Aluminum (HE + AL)
Blue: Qualitative data; 24 mL of water:
Quantitative data
Atom: ; Salt: Compound
Element
Which of the following in not a property of a colloid?
A.Tyndall effect
B. Adsorption
C. Brownian movement
d. Metalloid
D.
Fishkill regularly takes place on hot summer days. What could be a reason for this?
A. Increase in dissolve oxygen
B.Decrease in dissolve oxygen
D.
What is the “center” of gravity?
V
Which of the following hypotheses is written correctly?
A. If a tennis ball is frozen, it won't bounce as high as one that is not frozen.
B. If I freeze a tennis ball, then it will not bounce as high.
B.
Which is the solvent in this solution?
Medical solution: 0.9 g of NaCl and 100g water
0.9 g of NaCl
Which is the solute in the given solution?
Rubbing alcohol: 10 mL isopropyl alcohol 70% and 15 mL water
10 mL isopropyl alcohol 70%
A solution that has reached its maximum solubility.
Saturated Solution
What is the middle initial of teacher Jasmin?
O.
What is the correct order of the steps in the scientific method?
A. Research problem – hypothesis – experimental design – data organization – data interpretation – conclusion – recommendation – summary
B. Research problem – hypothesis – data organization – experimental design – data interpretation – conclusion – recommendation – summary
A
The solute refers to the substance that dissolves, while the solvent is the substance that is dissolved.
False
Malleability: Be hammered into thin sheets;Ductility:
Be drawn into a wire
A solution that contains relatively large amount of solute per unit volume
Concentrated or Diluted?
Diluted
What did scientists say when they found 2 Helium?
HeHe