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Science year 7 > EOY Science > Flashcards

EOY Science Flashcards

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Biology 101 flashcards
1
Q

Using a universal indicator, what colour will an acid change?

A

With a universal indicator acid will turn red.

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2
Q

Using a universal indicator, what colour will an alkalai change?

A

With a universal indicator alkalai will turn blue

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3
Q

Will acids always turn red?

A

No, only using the universal indicator they will.

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4
Q

Will Alkalai always turn blue?

A

No, only using the universal indicator they will.

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5
Q

When acids and alkalai mix together what do they make?

A

Salty water.

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6
Q

What is a force?

A

A force is a push, pull or twist.

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7
Q

Name 3 non-contact forces.

A

Magnetism, gravity, static electricity.

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8
Q

Name 4 contact forces.

A

Friction, air resistance, water resistance, upthrust.

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9
Q

What is mass?

A

It’s the amount of substance in your body.

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10
Q

What is weight?

A

The force of gravity in an object.

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11
Q

What is mass mesured in?

A

Kilograms(Kg)

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12
Q

What is weight mesured in?

A

Newtons(N)

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13
Q

What does elastic mean?

A

An object that will return to it’s normal shape after being stretched of compressed.

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14
Q

What does plastic mean?

A

An object that will not return to it’s normal shape after being streched or compressed.

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15
Q

What is the extension of a spring?

A

The increased length - original length.

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16
Q

What is pressure?

A

It’s the amount of force pushing on a certain area.

17
Q

What is pressure mesured in?

A

Pascals(Pa)

18
Q

What is the formula for working out pressure?

A

Pressure= Force ÷ Area

19
Q

What is a balanced force?

A

Balanced forces are forces on an object that are the same size but work in opposite directions.

20
Q

What are unbalanced forces?

A

Unblalanced forces are forces that moves an object because one force is bigger than another

21
Q

What does MRSGREN stand for?

A

Movement, respiration, sensitivity, growth, reproduction, excretion and nutrition.

22
Q

What does excretion mean?

A

Getting rid of waste

23
Q

What does respiration mean?

A

The intake of oxygen and the release of carbon dioxide.

24
Q

What does nutrition mean?

A

The process of providing or obtaining the food necessary for health and growth.

25
Q

What are you not allowed to bring into the lab?

A

Food and drink.

26
Q

What safety precautions must you take when you are using a bunsen burner?

A

-Tie long hair back
-Take of lanyards
-Take of any dangling jewelery ex. neckelaces,bracelets

27
Q

If soil is too acidic what should you use to nuetrilise the soil.

A

You should use manure.

28
Q

What controls the cell?

A

The nucleus

29
Q
A

Science year 7 (4 decks)

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