Question

topics for test
name/date:

1. laboratory tools and equipment - uses and names.
2. matter - elements, compounds and mixtures: definitions, developing models, compare and contrast,
3. methods of separation - decantation and filtration. label diagrams and explain applications
4. introduction to the periodic table - periods, groups, atomic numbers, families of the periodic table.

fill in the blank: fill in the blank with the correct words.

1. a______is used to measure liquid volume accurately.
2. ______are used for grasping and lifting containers of hot materials.
3. a______is used to clean test tubes after experiments.
4. a______is a flat - bottomed flask that can be swirled to mix chemicals.
5. the______is a three - legged frame used to support glassware during heating.

word bank:
test tube brush, erlenmeyer flask, tongs, graduated cylinder, tripod stand
multiple choice questions: choose the correct answer from the choices for each question.

1. which piece of equipment is best for transferring small amounts of liquid?

a) beaker
b) pipette
c) crucible
d) mortar

1. what is a bunsen burner used for?

o a) measuring mass
o b) heating samples to high temperatures
o c) mixing chemicals
o d) cleaning test tubes

1. which item is used to support equipment during filtration or heating?

o a) funnel
o b) well plate
o c) ring stand
o d) test tube rack

Explanation:

• Fill in the Blank:
• Question 1: A graduated cylinder is a common laboratory tool for accurately measuring liquid volume.
• Question 2: Tongs are designed to grasp and lift hot containers safely.
• Question 3: A test tube brush is specifically used to clean test tubes after experiments.
• Question 4: An Erlenmeyer flask has a flat - bottom and can be swirled for mixing chemicals.
• Question 5: A tripod stand is a three - legged frame that supports glassware during heating.
• Multiple Choice:
• Question 1: A pipette is used for transferring small amounts of liquid. A beaker is for general holding and mixing (not precise for small amounts), a crucible is for heating solids, and a mortar is for grinding solids.
• Question 2: A Bunsen burner is used for heating samples to high temperatures. It is not for measuring mass (balance is), mixing (stirring rod or flask swirling), or cleaning test tubes (test tube brush).
• Question 3: A ring stand is used to support equipment during filtration (with a clamp and funnel setup) or heating (with a clamp to hold glassware). A funnel is for pouring, a well plate is for small - scale reactions, and a test tube rack is for holding test tubes.

Answer:

• Fill in the Blank:

1. Graduated cylinder
2. Tongs
3. Test tube brush
4. Erlenmeyer flask
5. Tripod stand

• Multiple Choice:

1. B. Pipette
2. B. Heating samples to high temperatures
3. C. Ring stand