Assessment1

Question 1

Energy from—is needed for transport and to produce electricity

Answer 1

fuels

Question 2

1 —= 1000 —

Answer 2

kilojoules; joules （kJ; J)

Question 3

1 kcal=–

Answer 3

4.2kJ

Question 4

Keeping your —, —, —, and — all need energy.

Answer 4

body warm, breathing, moving, talking

Question 5

Children need energy to grow bigger —, —, and —.

Answer 5

bones, muscles, brains

Question 6

Fuels such as —,—,—,— also provide us with stored energy

Answer 6

coal, oil, electricity, or wood

Question 7

The energy in the food someone eats should equal the —

Answer 7

energy they need.

Question 8

Your body needs energy even when you are not moving bc

Answer 8

breathing, thinking ect.

Question 9

Seven characteristics of living organisms

Answer 9

Movement, Reproduction, Sensitivity, Growth, Respiration, Excretion, Nutrition

Question 10

2 kinds of variables

Answer 10

Controlled and Independent

Question 11

6 steps to plan an investigation

Answer 11

question, decide which variable you need to change, choose what to observe or measure, identify other variables that need to be controlled, looking for evidence, conclusion

Question 12

the removal of waste products from a living thing

Answer 12

Excretion

Question 13

a process making the energy in food available to organisms

Answer 13

Respiration

Question 14

detecting changes in the surroundings and responding to them

Answer 14

Sensitivity

Question 15

getting bigger, especially young organisms

Answer 15

Growth

Question 16

moving all or part of the body

Answer 16

Movement

Question 17

making more of the same type of organism

Answer 17

Reproduction

Question 18

taking in or making food

Answer 18

Nutrition

Question 19

The different types of matter (stuff) that things are made from —

Answer 19

materials

Question 20

All materials are made up of tiny —

Answer 20

Particles

Question 21

A material that has one type of – is called a —

Answer 21

matter; substance

Question 22

Every substance has its own type of —

Answer 22

Particle

Question 23

The — of a substance describe what it is like and what it does.

Answer 23

Properties

Question 24

Particle model (5-4)

Answer 24

what its particles are like
how its particles are arranged
how its particles move
How far apart the particles are (their separation)
how strongly its particles hold together (their attraction for each other)

Question 25

States of matter

Answer 25

solid, liquid, gas

Question 26

Matter/--- = --- (sugar, silver, pure water...) & --- = ---

Answer 26

materials, substance, mixtures, particles

Question 27

--- are properties that you can observe or measure without changing a material.

Answer 27

Physical properties

Question 28

The particles themselves are --- in all three states.

Answer 28

the same

Question 29

In the solid state: how its particles are arranged how its particles move how far apart the particles are (their separation) how strongly the particles hold together flow? can be squashed? shape change?

Answer 29

fixed positions in a regular pattern vibrate on the spot touch each other hold together strongly no only a tiny bit shape stays the same unless you apply a force

Question 30

In the gas state: how its particles are arranged how its particles move how far apart the particles are (their separation) how strongly the particles hold together flow? can be squashed? shape change?

Answer 30

not in a pattern move around very fast, in all directions far apart particles do not hold together strongly yes yes, a lot takes the shape of the whole container

Question 31

In the liquid state: how its particles are arranged how its particles move how far apart the particles are (their separation) how strongly the particles hold together flow? can be squashed? shape change?

Answer 31

not in a pattern move around randomly, sliding over each other touch each other hold together strongly (moderately) yes only a tiny bit takes the shape of the bottom of its container

Question 32

A --- has different physical properties in its three states.

Answer 32

substance

Question 33

What is energy?

Answer 33

A quantity that can be stored or transferred; a way of calculating which processes are possible