Match the vocabulary terms to their definitions.

1. standard metric unit of length

mass

2. a proposed explanation for a scientific problem

hypothesis

3. standard unit of volume

liter

4. the curved top surface of a liquid column

control

5. a quantity in an experiment that remains unchanged or constant

meter

6. amount of matter in an object

meniscus

1. The standard metric unit of length is a meter.

2. A proposed explanation for a scientific problem is a hypothesis.

3. The standard unit of volume is a liter.

4. The curved top surface of a liquid column is the meniscus.

5. A quantity in an experiment that remains unchanges or constant is a controlled variable (control)

6. The amount of matter in an object is mass.

1. Standard metric unit of length → meter

Unit is defined as the quantity that is used as a standard for measurement. Meter, Centimeters, hectometers are the units which is used to express length of a substance.

2. A proposed explanation for a scientific problem → hypothesis

Hypothesis is defined as explanation or supposition made on the basis of limited evidence for a specific process or phenomena.

3. Standard unit of volume → liter

Liter is the unit which is used to express volume occupied by the substance.

4. The curved top surface of a liquid column → meniscus

Liquids from two types of meniscus:

Concave shaped curve due to adhesive forces and is dominating inside the glass.

Convex shaped curve due to due to cohesive forces and is dominating on the top of glass.

5. A quantity in an experiment that remains unchanged or constant → control

Control variable is an experimental variable which is kept unchanged or remains constant through out the course of an experiment.

6. Amount of matter in an object → mass

Mass of the body is defined as quantity of present in a given object. It is a constant quantity.