SCIENCE DAY4

Question 1

building blocks of matter

Answer 1

atom

Question 2

atom is made up of

Answer 2

protons, neutrons, electrons

Question 3

non-matter does not occupy space and does not have a mass. examples of non-matter

Answer 3

light, energy

Question 4

classification of matter made up of ALL THE SAME TYPE OF ATOM or ALL THE SAME MOLECULES and it exhibit exact properties and composition

Answer 4

pure substance

Question 5

substances that are made up of only ONE TYPE OF ATOM. A PURE SUBSTANCE that cannot be broken down by chemical processes into simpler substances

Answer 5

ELEMENTS

Question 6

OXYGEN, HYDROGEN, SODIUM are examples of

Answer 6

ELEMENT

Question 7

what is the 118th ELEMENT

Answer 7

Oganesson (Og)

Question 8

classification of elements

Answer 8

metals
non-metals
metalloids

Question 9

classification of elements

usually solid and are good conductor of heat and electricity, e.g., copper or iron

Answer 9

metals

Question 10

metals exist as solid except for

Answer 10

mercury and gallium

Question 11

classification of elements

a poor conductor of heat and electricity
(oxygen, carbon, bromine, sulfur

Answer 11

non-metals

Question 12

classification of elements

have both properties of metals and non-metals (semi-metals)

Answer 12

metalloids

Question 13

substances that are formed by the CHEMICAL COMBINATION OF TWO OR MORE TYPE OF ATOMS

Answer 13

COMPOUNDS

Question 14

Substance that CAN BE BROKEN DOWN by chemical processes into simpler substance

Answer 14

COMPOUNDS

Question 15

water H2O, carbon dioxide CO2 are examples of

Answer 15

COMPOUNDS

Question 16

alcohol is a class of organic compound characterized by a _________ bonded to an ________ group

Answer 16

hydroxyl bonded to an alkyl group

Question 17

found in perfumes and colognes and food coloring

Answer 17

ester

Question 18

types of chemical bonding

Answer 18

covalent bond
ionic bond

Question 19

type of chemical bonding

bonding of TWO OR MORE NON-METALS
examples: H2O, CH4, CO2

Answer 19

COVALENT BOND

Question 20

type of chemical bonding

bonding between METALS and NON-METALS
examples: NaCl (sodium chloride) NaF (Sodium Fluoride)

Answer 20

IONIC BOND

Question 21

a type of matter consisting two or more different substances that have been combined WITHOUT CHEMICAL BONDING taking place, just a physical combination

Answer 21

mixture

Question 22

type of mixture that has a single phase

Answer 22

homogenous mixture

Question 23

type of mixture that are visually distinguished

Answer 23

heterogenous mixture

Question 24

under heterogenous mixture:
contains particles that DO NOT SETTLE

Answer 24

COLLOID

Question 25

under heterogenous mixture: contains layer particles that EVENTUALLY SETTLE OUT

Answer 25

SUSPENSION

Question 26

UNDER MIXTURES: milk, cloud, and fog are examples of

Answer 26

colloid

Question 27

UNDER MIXTURES: chocolate milk and orange juice are examples of

Answer 27

suspension

Question 28

STATES OF MATTER has definite shape and volume, particles are tightly packed, very little energy, particles vibrate in place

Answer 28

SOLID

Question 29

STATES OF MATTER has definite volume but no definite shape, particles are loosely packed, medium energy level, particles flow around each other

Answer 29

liquid

Question 30

STATES OF MATTER does not have definite volume and shape, particles move freely and have lots of energy

Answer 30

gas

Question 31

STATES OF MATTER a very hot gas of nuclei and electrons, superheated gas

Answer 31

plasma

Question 32

STATES OF MATTER super cold at absolute ZERO temperature

Answer 32

Bose-Einstein Condensate (BEC)

Question 33

CHANGES IN MATTER a change wherein the chemical composition has been altered or a chemical reaction has taken place

Answer 33

chemical change

Question 34

CHANGES IN MATTER rusting of iron

Answer 34

chemical change

Question 35

CHANGES IN MATTER the chemical composition remains the same. it involves only a change in the size, shape, or amount, as well as changes in state

Answer 35

physical change

Question 36

CHANGES IN MATTER tearing of paper chopping of woods breaking of rock

Answer 36

physical change

Question 37

EXAMPLE OF PHYSICAL CHANGE liquid to solid

Answer 37

freezing

Question 38

CHANGES IN MATTER solid to liquid

Answer 38

melting

Question 39

CHANGES IN MATTER liquid to gas

Answer 39

evaporation

Question 40

CHANGES IN MATTER gas to liquid

Answer 40

condensation

Question 41

CHANGES IN MATTER solid to gas

Answer 41

sublimation

Question 42

CHANGES IN MATTER gas to solid

Answer 42

deposition

Question 43

TYPES OF CHEMICAL REACTION reaction between two or more simple substances to form a single product

Answer 43

synthesis

Question 44

TYPES OF CHEMICAL REACTION a single reactant is broken down into two or more products

Answer 44

decomposition

Question 44

TYPES OF CHEMICAL REACTION a more active element replaces a less active element in a compound

Answer 44

substitution

Question 45

TYPES OF CHEMICAL REACTION interchange of the two parts of two substances to form new substances

Answer 45

double decomposition

Question 45

TYPES OF CHEMICAL REACTION needs energy

Answer 45

endothermic reaction

Question 46

TYPES OF CHEMICAL REACTION releases energy

Answer 46

exothermic reaction

Question 47

TYPES OF CHEMICAL REACTION A + B AB

Answer 47

SYNTHESIS

Question 48

TYPES OF CHEMICAL REACTION AB A + B

Answer 48

DECOMPOSITION

Question 49

TYPES OF CHEMICAL REACTION AB + C AC + B

Answer 49

SUBSTITUTION

Question 50

TYPES OF CHEMICAL REACTION AB + CD AD + CB

Answer 50

DOUBLE DECOMPOSITION

Question 51

TYPES OF CHEMICAL REACTION AB + energy A + B A + B + energy AB

Answer 51

ENDOTHERMIC REACTION

Question 52

TYPES OF CHEMICAL REACTION AB A + B + energy A + B AB+ energy

Answer 52

EXOTHERMIC REACTION

Question 53

pH value of BELOW 7

Answer 53

ACIDS

Question 54

pH value of ABOVE 7

Answer 54

BASES

Question 55

pH value of 7

Answer 55

neutral (pure water)

Question 56

pH means

Answer 56

POWER OF HYDROGEN

Question 57

study of matter and energy and their relationship

Answer 57

physics

Question 58

what is the basic unit for PRESSURE

Answer 58

PASCAL

Question 59

MASS vs WEIGHT quantity of matter in an object; can be measured in kg

Answer 59

MASS

Question 60

MASS vs WEIGHT the pull of gravity; can be measured in N (Newton)

Answer 60

WEIGHT

Question 61

a continuous change in position

Answer 61

motion

Question 62

NEWTON'S LAWS OF MATION every object continues in its state of rest, or of uniform motion with constant speed in a straight line, unless acted upon by unbalanced external forces impressed upon

Answer 62

FIRST LAW: LAW OF INERTIA

Question 63

NEWTON'S LAWS OF MATION when enough force is applied, the object will accelerate

Answer 63

SECOND LAW: LAW OF ACCELERATION

Question 64

NEWTON'S LAWS OF MATION to every action there is always an apposite equal reaction

Answer 64

THIRD LAW: LAW OF INTERACTION

Question 65

it is the capacity to do work

Answer 65

energy

Question 66

energy at rest. has the potential to fall or move

Answer 66

potential energy

Question 67

energy in motion

Answer 67

kinetic energy

Question 68

energy cannot be created or destroyed. it is only transformed into another form of energy

Answer 68

conservation energy

Question 69

study of heat and its transformation to different forms of energy

Answer 69

thermodynamics

Question 70

METHODS OF HEAT TRANSFER: transmission of heat from two objects with direct contact

Answer 70

conduction

Question 71

METHODS OF HEAT TRANSFER: heat transfer through air and water currents (liquid)

Answer 71

convection

Question 72

heat transfer through rays or waves emitted by a very hot object (sun)

Answer 72

radiation

Question 73

what is the speed of light

Answer 73

3.0 x 10^8 m/s

Question 74

light travels fastest in a _______

Answer 74

vacuum (gas - liquid - solid)

Question 75

______ of violet and blue frequencies of sunlight in all directions is what gives the sky its blue color

Answer 75

scattering

Question 76

_______ is the separation of white light by a prism into bands of colors (rainbow)

Answer 76

dispersion

Question 77

________ is the bending of light as it passes through an obstruction such as a small slit

Answer 77

diffraction

Question 78

________ is the overlapping of light waves. the beautiful colors of soap bubbles or on thin film of oil

Answer 78

interference

Question 79

_______ is when light bounces off an object

Answer 79

reflection

Question 80

________ is when light changes its direction as it passes through a medium

Answer 80

refraction

Question 81

a chemical wave

Answer 81

sound

Question 82

sound travels fast in _______, next in ______, next in _______

Answer 82

solid - liquid - gas

Question 83

sound cannot travel in _______

Answer 83

vacuum