BIOBEYOND UNIT 4 RISE OF THE ANIMALS
NILPENA AUSTRALIA 2026 ACTUAL
QUESTIONS AND SOLUTIONS
CERTIFICATION PREPARATION STUDY
SHEET VERIFIED ANSWERS
⩥ What should be done if the results of an experiment do not support the
initial hypothesis? Answer: Adjust the hypothesis and conduct additional
experiments.
⩥ What is the importance of asking questions in science? Answer: It
drives the formulation of hypotheses and guides scientific inquiry.
⩥ What does it mean for a hypothesis to be testable? Answer: It can be
supported or refuted through experimentation or observation.
⩥ What is the relationship between hypotheses and theories in science?
Answer: Hypotheses can evolve into theories after extensive testing and
validation.
⩥ What is the role of curiosity in scientific inquiry? Answer: Curiosity
drives the desire to learn and explore scientific questions.
,⩥ What is the outcome of a well-conducted scientific experiment?
Answer: It provides evidence to support or refute a hypothesis.
⩥ What is matter? Answer: Matter is any material that takes up space.
⩥ What is an element? Answer: An element is a substance that cannot be
broken down by chemical means into other substances, composed of the
same type of atoms.
⩥ How many known elements are listed in the periodic table? Answer:
There are 118 known elements.
⩥ How many naturally occurring elements are there? Answer: There are
92 naturally occurring elements.
⩥ What are the 'Big Four' elements essential for life? Answer: Oxygen,
Carbon, Hydrogen, and Nitrogen.
⩥ What is the charge of protons, neutrons, and electrons? Answer:
Protons are positively charged, neutrons are neutral, and electrons are
negatively charged.
⩥ What does an element's atomic number indicate? Answer: It indicates
how many protons are in each atom of that element.
, ⩥ What is an atom's mass number? Answer: The mass number is the
total number of protons and neutrons in its nucleus.
⩥ How do isotopes of an element differ? Answer: Isotopes have the
same chemical properties but different physical properties.
⩥ What is the atomic weight of an element? Answer: The atomic weight
is the average mass of all isotopes of that element.
⩥ What is the atomic weight of carbon? Answer: Carbon's atomic
weight is close to 12.
⩥ What are the mass numbers of common carbon isotopes? Answer:
Carbon isotopes have mass numbers of 12, 13, and 14.
⩥ What is the significance of the periodic table's columns? Answer: The
chemical properties of elements repeat in each column, which is why it
is called 'periodic'.
⩥ What are the two main components of organic molecules? Answer:
Carbon and Hydrogen
NILPENA AUSTRALIA 2026 ACTUAL
QUESTIONS AND SOLUTIONS
CERTIFICATION PREPARATION STUDY
SHEET VERIFIED ANSWERS
⩥ What should be done if the results of an experiment do not support the
initial hypothesis? Answer: Adjust the hypothesis and conduct additional
experiments.
⩥ What is the importance of asking questions in science? Answer: It
drives the formulation of hypotheses and guides scientific inquiry.
⩥ What does it mean for a hypothesis to be testable? Answer: It can be
supported or refuted through experimentation or observation.
⩥ What is the relationship between hypotheses and theories in science?
Answer: Hypotheses can evolve into theories after extensive testing and
validation.
⩥ What is the role of curiosity in scientific inquiry? Answer: Curiosity
drives the desire to learn and explore scientific questions.
,⩥ What is the outcome of a well-conducted scientific experiment?
Answer: It provides evidence to support or refute a hypothesis.
⩥ What is matter? Answer: Matter is any material that takes up space.
⩥ What is an element? Answer: An element is a substance that cannot be
broken down by chemical means into other substances, composed of the
same type of atoms.
⩥ How many known elements are listed in the periodic table? Answer:
There are 118 known elements.
⩥ How many naturally occurring elements are there? Answer: There are
92 naturally occurring elements.
⩥ What are the 'Big Four' elements essential for life? Answer: Oxygen,
Carbon, Hydrogen, and Nitrogen.
⩥ What is the charge of protons, neutrons, and electrons? Answer:
Protons are positively charged, neutrons are neutral, and electrons are
negatively charged.
⩥ What does an element's atomic number indicate? Answer: It indicates
how many protons are in each atom of that element.
, ⩥ What is an atom's mass number? Answer: The mass number is the
total number of protons and neutrons in its nucleus.
⩥ How do isotopes of an element differ? Answer: Isotopes have the
same chemical properties but different physical properties.
⩥ What is the atomic weight of an element? Answer: The atomic weight
is the average mass of all isotopes of that element.
⩥ What is the atomic weight of carbon? Answer: Carbon's atomic
weight is close to 12.
⩥ What are the mass numbers of common carbon isotopes? Answer:
Carbon isotopes have mass numbers of 12, 13, and 14.
⩥ What is the significance of the periodic table's columns? Answer: The
chemical properties of elements repeat in each column, which is why it
is called 'periodic'.
⩥ What are the two main components of organic molecules? Answer:
Carbon and Hydrogen
