SCIENCE TEST 1

A represents the _____

TWO ANSWERS: Which two are considered as scientific attitudes?

The components of compounds can be separated only through physical means.

Refers to the exactness to which a measurement can be replicated

NAME THIS SYMBOL: substances that may react and cause irritation or tissue damage or may corrode other materials

What is the base unit for time?

It is a neurotransmitter in the brain.

Graphite and diamond are both allotropes of _____

TWO ANSWERS: Which two are considered as scientific attitudes?

What is the base unit for luminous intensity?

The common name of acetylsalicylic acid is _____

The globally accepted scientific system of measurment

What does this symbol mean?

The following elements are considered as metals except _____

The most logical explanation of why things happen or work

Branch of science that deals with matter and energy

It is essential for oxygen transport and energy capture.

It can be classified as elements or compounds

CONVERT TO SCIENTIFIC NOTATION: 95,000

Chromatography is the process used to separate heterogeneous mixtures of solids and liquids through a filter paper.

Have high melting points

Atoms can no longer be broken down by either physical or chemical methods.

CONVERT TO SCIENTIFIC NOTATION: 0.0000095

B represents the _____

Used as a disinfectant and can purify potable water when used in small amounts

What is the base unit for electric current?

Regulates heart function, reduces blood pressure, helps in protein and nucleic acid synthesis, assists in fluid balance

Mixtures are made of either elements or compounds that are chemically combined.

Phase transfer is where a new substance that collects components from the mixture is added.

System of weights and measures wherein body parts or common household items are used for measuring

Involves asking questions and developing explanations to particular phenomena through scientific process skills

A large class of chemical compounds wherein carbon atoms are covalently linked to atoms of other elements

Deals with the application of scientific knowledge for practical use

Decantation is a process used to separate insoluble solids from a mixture by pouring the liquid into another container.

Process that makes solid particles settle at the bottom of the test tube.

A proposed answer or explanation to a question based on initial pieces of evidence

Science comes from the Greek word _____

Kelvin is the base unit for which fundamental quantity?

Saltwater is an example of a homogeneous mixture.

HOW MANY SIGNIFICANT FIGURES: 2020.0

A suspension is a heterogeneous mixture composed of scattered particles that cause a Tyndall effect.

Refers to one's capacity to use scientific knowledge, to identify questions, and to draw evidence-based conclusions

HOW MANY SIGNIFICANT FIGURES: 2020

Process used to separate a soluble solid and a liquid by heating.

Compounds can be classified as _____ and _____

Which of the following is under physical science?

A molecule is formed by combining two or more different elements.

A homogeneous mixture has uniform composition all throughout.

Which of the following concept pairs do NOT serve as a basis for establishing scientific ideas?

HOW MANY SIGNIFICANT FIGURES: 0.0078

Chromatography is the process of separating materials using a magnet or any material with strong magnetic properties.

Anna failed in her Math exam. What attitude must Anna posses for her to improve?

A summary of experimental results that describe a pattern in nature

Describes how well the result agrees with the accepted value of the quantity being measured

TWO ANSWERS: Which are the characteristics of a homogeneous mixture?

Milk is an example of a homogeneous mixture.

Materials that conduct electricity only to some extent

The chemical formula of baking powder is _____

A person makes a conclusion based on reliable pieces of evidence

Jack and Rose gather information using their five senses. What are they doing?

[TWO ANSWERS] What are the characteristics of metalloids?

Phase conversion is where one component of a mixture is converted into another form that is easy to isolate.

Triple beam balance and weighing scale are common measuring instruments to measure _____

Which is NOT a branch of science?

Allows the user to view specimens too small for unaided human eyes

Poor conductors of heat and electricity

[TWO ANSWERS] What are the characteristics of metals?

Provides a ready source of heat in the laboratory

WHAT KIND OF OBSERVATION IS THIS: Vinegar tastes sour.

HOW MANY SIGNIFICANT FIGURES: 1,000,000

WHAT KIND OF OBSERVATION IS THIS: The male population and the female population in the class are not equal.

Made of either elements or compounds that are physically combined

A person shows fair judgment by not allowing biases in recording observations and formulating conclusions

Composed of two or more substances that are evenly mixed

Distillation is a process used to separate components of homogeneous mixtures through the difference in boiling points.

Branch of science that deals with the natural mechanisms on Earth, including weather and climate systems

A person presents legitimate report of observations

Simple substances that have unique compositions