Grade 9 NATURAL SCIENCE Term 2 Revision Questions with Verified Answers |
Guaranteed Success
Oxygen is a ________ element. diatomic
__________ is the jelly-like substance, which fills the cell. cytoplasm
When a metals reacts with oxygen a _______ is formed. metal oxide
The _________ contains deoxyribonucleic acid (DNA). nucleus
What is the acid found in your stomach? Hydrochloric acid
TRUE or FALSE
Mitochondria are in both plant and animals. true
What is the correct definition of "corrosive''? A process that causes the gradual destruction
of a substance by chemical reaction.
________ is the metabolic reaction that releases energy from glucose. respiration
TRUE or FALSE
The pH scale goes up to 7. false
(Axon/Dendrites) are short projections or extensions that stretch out of the cell body.
dendrites
The stronger the acid the (higher/lower) the pH. lower
, _______ is a long, thread-like projection of the neuron. axon
TRUE or FALSE
Alkali's/bases change the colour of universal indicator towards the blue colours. false
The nose, ears, eyes, skin and tongue are called ________ organs. sensory
What is the pH of clean distilled water? 7
__________ is to make more organism or living things. reproduction
Elements in the same group on the periodic table have the (different/same) chemical
properties. same
With (sexual/asexual) reproduction there is only one parent. The offspring are identical to the
parent. asexual
TRUE or FALSE
The atomic numbers of the elements decrease by one as you go from left to right across a
period. false
What is the only metal that is liquid at room temperature? mercury
The parents have reproductive organs that make ________ (sex cells). gametes
Non-metals are found of the periodic table? on the right hand side
Guaranteed Success
Oxygen is a ________ element. diatomic
__________ is the jelly-like substance, which fills the cell. cytoplasm
When a metals reacts with oxygen a _______ is formed. metal oxide
The _________ contains deoxyribonucleic acid (DNA). nucleus
What is the acid found in your stomach? Hydrochloric acid
TRUE or FALSE
Mitochondria are in both plant and animals. true
What is the correct definition of "corrosive''? A process that causes the gradual destruction
of a substance by chemical reaction.
________ is the metabolic reaction that releases energy from glucose. respiration
TRUE or FALSE
The pH scale goes up to 7. false
(Axon/Dendrites) are short projections or extensions that stretch out of the cell body.
dendrites
The stronger the acid the (higher/lower) the pH. lower
, _______ is a long, thread-like projection of the neuron. axon
TRUE or FALSE
Alkali's/bases change the colour of universal indicator towards the blue colours. false
The nose, ears, eyes, skin and tongue are called ________ organs. sensory
What is the pH of clean distilled water? 7
__________ is to make more organism or living things. reproduction
Elements in the same group on the periodic table have the (different/same) chemical
properties. same
With (sexual/asexual) reproduction there is only one parent. The offspring are identical to the
parent. asexual
TRUE or FALSE
The atomic numbers of the elements decrease by one as you go from left to right across a
period. false
What is the only metal that is liquid at room temperature? mercury
The parents have reproductive organs that make ________ (sex cells). gametes
Non-metals are found of the periodic table? on the right hand side
