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NST Evan Grade 4 > Energy > Flashcards

Energy Flashcards

1
Q

What type of consumers are herbivores?

A

Primary

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2
Q

What gets us energy directly from the sun?

A

Plants

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3
Q

What gets its energy indirectly from the sun?

A

Animals

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4
Q

What is a producer?

A

Plant

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5
Q

Why are plants called producers?

A

They produce their own energy from sunlight

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6
Q

Why do organisms need energy?

A

To grow

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7
Q

What is the plant process of converting sunlight into the type of energy that allows them to grow called?

A

Photosynthesis

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8
Q

What is a consumer? Why?

A

Animals because they get their energy from consuming (eating) other things. They take the energy from the animals/plants that they eat

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9
Q

What is a primary consumer?

A

Herbivore

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10
Q

What is a secondary consumer?

A

An animal that eats herbivores. It could be a carnivore or an omnivore

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11
Q

What is a tertiary consumer?

A

The third consumer in a food chain. They eat secondary consumers (could be carnivores or omnivores)

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12
Q

What order of consumer is a cow?

A

Primary

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13
Q

Give some example of decomposes?

A

Worms, fungi, bacteria

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14
Q

How do decomposers get their energy?

A

From eating dead plants and animals

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15
Q

Why are decomposers thought of as recyclers?

A

They release the nutrients in dead organisms back into the soil. Plants then use the nutrients. This means the nutrients are recycled .

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16
Q

What are nutrients?

A

Substances in food (or soil) that living things need to live, grow and to stay healthy

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17
Q

What are nutrients used for?

A

To live

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18
Q

What makes something a source of energy?

A

It is something a living organism gets food from

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19
Q

Where do humans get their energy from?

A

From the food we eat

20
Q

What does an food chain show?

A

A food chain.
Shows the order in which energy goes from the sun to plant to animal

21
Q

How is energy transferred to producers?

A

Photosynthesis

22
Q

What are the different types of energy?

A

Light
Sound
Heat
Movement

23
Q

Three examples of light energy?

A

Sun
Lightning
Lamp
Candle

24
Q

Three examples of sound energy

A

Trumpet
Trombone
Candle
Piano
Drums
Bird
Whistling
Thunder

25
Q

Heat energy- four examples

A

Camp fire
Braai
Oven
Heater
Hairdryer

26
Q

Where is crude oil found?

A

Deep underground

27
Q

Where does the energy in crude oil come from?

A

From small sea creatures and plants that lived millions of years ago

28
Q

What is a system?

A

Something that has multiple parts that work together to do something

29
Q

Give 2 examples of systems

A

Machines and appliance

30
Q

What is the energy that goes into a system?

A

Input energy

31
Q

What is the difference between music and noise?

A

Noise is random or unorganised sound. Music is organised sound.

32
Q

What causes sound from instruments?

A

Movement that vibrates air in a flute or material such as guitar strings.

33
Q

Describe some instruments and what input movement makes the sound.

A

Flute = blow to move air through it
Tambourine = shake or hitting it
Guitar = pluck or strum the strings

34
Q

Describe the differences in energy input
1) percussion instruments
2) wind instruments
3) string instruments

A

1) hitting
2) Blowing
3) plucking (guitar) or rubbing the strings (violin)

35
Q

How does changing a vibration change the music?

A

Changes the frequency of the sound wave. High frequency = high pitch and vice versa.

36
Q

What does indigenous mean?

A

where it came from originally

37
Q

What is the input energy for musical instruments?

A

Movement

38
Q

What is the output energy for musical instruments?

A

Sound

39
Q

How is it played and what is it made of?
Flute

A

Blow across
Silver plated metal

40
Q

How is it played and what is it made of?
Kwela flute

A

Blowing
Made of wood

41
Q

How is it played and what is it made of?
French horn

A

Blow in it
made Of brass

42
Q

How is it played and what is it made of?
Kudu horn

A

Blow into it
Made of a judo horn

43
Q

How is it played and what is it made of?
Harp

A

Pluck the strings
Made of wood and wire

44
Q

How is it played and what is it made of?
Krar

A

Bow, strum or pluck the strings
Made of wood

45
Q

How is it played and what is it made of?
Violin

A

Drawing the bow across the string or plucking
Made of wood and nylon

46
Q

How is it played and what is it made of?
Traditional musical bow

A

By plucking the string or scraping it with a bow or hitting
Made from sticks, calabash, string made from hide

NST Evan Grade 4 (4 decks)

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