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History Key Words > Natural Science Grade 7 > Flashcards

Natural Science Grade 7 Flashcards

(112 cards)

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1
Q

What is the definition of ‘Adapted’?

A

Changed over time to survive in a specific environment.

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2
Q

What are Amphibians?

A

Cold-blooded animals that live both in water and on land.

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3
Q

What kingdom includes all animals?

A

Animalia.

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4
Q

Define Arachnids.

A

Arthropods with eight legs, like spiders and scorpions.

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5
Q

What are Arthropods?

A

Invertebrates with jointed legs and an exoskeleton.

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6
Q

What is the Atmosphere?

A

The layer of gases that surrounds Earth.

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7
Q

What does Aquatic mean?

A

Living in or around water.

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8
Q

What are Bacteria?

A

Tiny single-celled organisms found everywhere.

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9
Q

Define Biodiversity.

A

The variety of living organisms in an area.

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10
Q

What defines Birds?

A

Warm-blooded animals with feathers and beaks.

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11
Q

What is the Biosphere?

A

The part of Earth where life exists.

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12
Q

What is a Cancer bush?

A

A traditional medicinal plant.

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13
Q

What is Cape aloe?

A

A plant (Aloe ferox) used in healing and medicine.

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14
Q

What does Classification refer to?

A

Grouping organisms based on shared features.

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15
Q

What are Cone plants?

A

Plants that reproduce with cones (e.g., gymnosperms).

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16
Q

What are Cones?

A

Seed-bearing structures found in some plants.

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17
Q

Define Crustaceans.

A

Aquatic arthropods like crabs and shrimp.

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18
Q

What is a Cycad?

A

A type of cone-producing plant.

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19
Q

What does Decayed mean?

A

Broken down by decomposers like bacteria.

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20
Q

What is a Dicotyledon?

A

A plant with seeds that have two seed leaves.

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21
Q

What is Energy needed for?

A

Needed by organisms to grow and move.

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22
Q

Define Excretion.

A

The removal of waste products from the body.

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23
Q

What is an Exoskeleton?

A

A hard outer shell that protects some animals.

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24
Q

What are Ferns?

A

Non-flowering plants that use spores to reproduce.

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25
What defines Fish?
Water animals with gills and fins.
26
What is the Fungi kingdom?
A kingdom of organisms that absorb nutrients from dead matter.
27
What are Gases?
Substances like oxygen and carbon dioxide.
28
What are Gills?
Organs used by fish to breathe underwater.
29
What are Gymnosperms?
Plants with seeds in cones instead of flowers.
30
What is a Habitat?
The natural home of an organism.
31
Define Herbaceous.
Plants with soft, green stems.
32
What is the Hydrosphere?
All water found on Earth.
33
What are Insects?
Arthropods with six legs and three body parts.
34
What are Invertebrates?
Animals without a backbone.
35
What is a Light skeleton?
A bird’s lightweight bone structure for flight.
36
What is the Lithosphere?
Earth's solid outer layer (land and soil).
37
What does Locomotion refer to?
Movement from place to place.
38
What are Mammals?
Warm-blooded animals with hair that produce milk.
39
What are Microorganisms?
Tiny living organisms only visible with a microscope.
40
What are Molluscs?
Invertebrates with soft bodies, often with shells.
41
What is a Monocotyledon?
A plant with one seed leaf in its seed.
42
What is Moss?
Small green plants that grow in damp places.
43
What does Movement refer to?
The ability to change position or location.
44
What is a Pigeon used for?
A bird used as an example in studies.
45
What is the Protista kingdom?
A kingdom of mostly single-celled organisms like algae.
46
What are Reptiles?
Cold-blooded animals with scales.
47
What is Respiration?
The release of energy from food.
48
What are Scales?
Protective plates on fish and reptiles.
49
What is a Seed lobe?
Stores food in a seed for a new plant.
50
What are Seeds?
Plant structures that contain embryos.
51
What does Sensitive mean?
Able to detect and respond to changes.
52
Define Sensitivity.
The ability to react to stimuli.
53
What is Slimy skin with glands?
Found in amphibians to help moisture control.
54
What is Soil?
Earth material that supports plant life.
55
What does Standardise mean?
To make consistent across groups.
56
What is Temperature?
Measure of heat or cold.
57
What does Terrestrial mean?
Living on land.
58
What are Vertebrates?
Animals with backbones.
59
What is Water?
Essential for all living things.
60
What are Webbed feet?
Help animals like ducks swim.
61
What is a Yellow fish?
A freshwater fish, used in ecological examples.
62
What does Classification involve?
Sorting organisms into groups based on traits.
63
What are the five kingdoms of life?
* Animalia * Plantae * Fungi * Protista * Bacteria
64
What is the definition of Phylum?
A group in classification below kingdom.
65
What is Class in biological classification?
A category in classification below phylum.
66
What is Order in biological classification?
A category below class, groups similar families.
67
What is Family in biological classification?
A classification group below order.
68
Define Genus.
A group of closely related species.
69
What is Species?
A group of organisms that can breed together.
70
What is Canidae?
The dog family.
71
What is Canis?
A genus that includes dogs and wolves.
72
What is Felidae?
The cat family.
73
What is Felis?
A genus of cats.
74
What is an Anther?
Part of the stamen that produces pollen.
75
What is a Contraceptive?
A method used to prevent pregnancy.
76
What is an Embryo sac?
The part of the ovule that holds the egg cell.
77
What is Endosperm?
Food-rich tissue that nourishes a growing seed.
78
What is Fertilisation?
When sperm and egg cells join to form a zygote.
79
What is a Flower?
The reproductive structure of flowering plants.
80
What is Fruit?
The mature ovary of a flower containing seeds.
81
What does Germinate mean?
When a seed begins to grow into a plant.
82
What is Germination?
The process of a seed starting to grow.
83
What is Implantation?
When a fertilised egg attaches to the uterus lining.
84
What is Menstruation?
Monthly shedding of the uterine lining in females.
85
What defines a Mature plant?
A plant that is fully grown and can reproduce.
86
What is an Ovary?
Produces egg cells (in animals) or holds ovules (in plants).
87
What is an Ovule?
Contains the embryo sac and becomes the seed.
88
What is an Ovum (egg cell)?
Female reproductive cell.
89
What is a Pedicel?
The stalk supporting a flower.
90
What are Petals?
Colourful parts of a flower that attract pollinators.
91
What is a Pistil?
Female part of a flower; includes stigma, style, and ovary.
92
What is Pollen?
Male reproductive cells in flowering plants.
93
What is a Pollen tube?
Tube that forms after pollination to carry sperm to the ovule.
94
What does Pollination involve?
Transfer of pollen from anther to stigma.
95
What are Pollinators?
Animals (like bees) that help with pollination.
96
What are Polar nuclei?
Nuclei that help form the endosperm in plant reproduction.
97
What does Pregnant mean?
When an embryo grows inside the uterus.
98
What is Puberty?
The stage where a person becomes able to reproduce.
99
What is a Receptacle?
The part of a flower stalk where floral parts are attached.
100
What does Reproduce mean?
To create offspring.
101
What is a Seed coat?
The outer protective covering of a seed.
102
What is Sperm?
Male reproductive cell.
103
What are Stamens?
Male flower parts producing pollen.
104
What is a Stigma?
Sticky tip of the pistil where pollen lands.
105
What is a Style?
Connects stigma to ovary in flowers.
106
What does Suppress mean?
To stop or reduce a biological function.
107
What are Testes?
Male organs that produce sperm.
108
What is a Uterus?
Organ where a baby grows in mammals.
109
What is a Zygote?
A fertilised egg cell.
110
What does Dispersed mean?
Spread out (e.g., seeds moved by wind or animals).
111
What is a Young root?
The first root that grows from a seed.
112
What does Dormant mean?
A resting stage when a seed is inactive.

History Key Words (2 decks)

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