A

Fill in the blanks

i.

A plant bears a root system and a shoot system after a(an)……………………………… germinates.

ii.

Roots prevent ……………………………. and ……………………………. by holding the soil particles together.

iii.

Some roots store carbohydrates for ……………………………. conditions.

iv.

Food is transported from the ……………………………… to all parts of the plant.

v.

……………………………… are underground storage organs formed by the thickening or swelling of the sub apical portion of the underground stem.

vi.

Plants carry out gaseous exchange through ……………………………… of leaves.

vii.

Plants give out ……………………………… during photosynthesis.

viii.

Food storing leaves are ……………………………. and …………………………….

ix.

……………………………… is the part of a stem between two consecutive nodes.

x.

……………………………… is the part of the embryo that grows into shoot.

xi.

The process of removing starch is called ………………………………

xii.

A stalk that attaches a leaf to the stem is called the ………………………………

xiii.

……………………………… is the main flat part of a leaf.

B

Tick the correct answer.

i.

Which of the following plants has a prop root?

a. Banyan

b. Maize

c. Red Mangrove

d. Onion

ii.

Which of the following plant is a creeper?

a. Pea

b. Grapevine

c. Strawberry

d. Bean

iii.

…………………………. plant has parallel venation.

1. Mustard

1. Coriander

1. Banana

1. Spinach

iv.

Which of the following has a stilt root?

a. Onion

b. Sugarcane

1. Mango

1. Strawberry

v.

…………………………. is the science that deals with the study of life processes.

1. Anatomy

1. Physiology

1. Psychology

1. Zoology

vi.

Which of the following statement is incorrect?

1. Beet is food storing root.

1. Casuarina has buttress root.

1. Onion has contractile root.

1. Red Mangrove has parasitic root.

vii.

Which of the following statement is correct?

a. Corm is a modified root.

b. Potato is an underground root.

c. Starch test on the leaves is done by using iodine solution.

d. The tuber is a form of modified leaf.

C.

State whether the following statements are TRUE or FALSE.

i.

Some roots are modified to store food.

………………………………..

ii.

Climbers have a weak stem and cannot stand on their own.

………………………………..

iii.

The thorn is a form of modified leaf.

………………………………..

iv.

Corms are underground stems with short internodes.

………………………………..

v.

Some leaves are short stalks called petioles to attach them to the stem.

………………………………..

vi.

Only some of the green plants need sunlight for photosynthesis.

………………………………..

vii.

Plants take in oxygen and give out carbon dioxide during photosynthesis.

………………………………..

viii.

Plants have special tubes to carry water to the leaves.

………………………………..

ix.

Chlorophyll are contained in green plastid called the chloroplast.

………………………………..

x.

The process of losing excess water by plants in the form of water vapour is called transpiration.

………………………………..

xi.

The food prepared by the plants is in the form of fat.

………………………………..

xii.

Addition of pinch of sodium hydrogen carbonate provides carbon dioxide to the hydrilla during photosynthesis.

………………………………..

xiii.

Carbon dioxide is given out during photosynthesis.

………………………………..

D.

Match the following

COLUMN A

COLUMN B

i.

Tallest herb

Eucalyptus tree

( )

ii.

Biggest herb

Transport water and minerals

( )

iii.

Medicinal plant

Bamboo

( )

iv.

Wheat

Banana

( )

v.

Maize

Cuscuta

( )

vi.

Parasitic root

Fibrous root

( )

vii.

Pea plant

Stilt root

( )

viii.

Peepal leaf

Climber

( )

ix.

Xylem

Reticulate venation

( )

A

Fill in the blanks

i.

Metals possess metallic ………………………………….

ii.

…………………………………. are good conductors of heat and electricity.

iii.

…………………………………. is the property of metal to be beaten to form thin sheets.

iv.

…………………………………. is the non-metal that conducts heat and electricity.

v.

…………………………………. is the homogeneous mixture of metals or metals with non-metals.

vi.

…………………………………. is the negatively charged particles of an atom.

vii.

…………………………………. are those pure substance from which metals are made.

viii.

Those elements that show the properties of both metals and non-metals are called ………………………………….

ix.

…………………………………. is a metal that exist in liquid state at the room temperature.

x.

Constituents of …………………………………. are zinc and copper.

C.

State whether the following statements are TRUE or FALSE.

i.

Silver metal colour is used in polishing glasses.

………………………

ii.

Arsenic is the hardest non-metal.

………………………

iii.

Graphite is a metal.

………………………

iv.

Alloy of copper and zinc is brass.

………………………

v.

Brittle substances break down into pieces.

………………………

D.

Match the following.

COLUMN A

COLUMN B

i.

Diamond

Have white metallic lustre

( )

ii.

Graphite

Used as electric wires

( )

iii.

Silver

Hardest substance

( )

iv.

Germanium

Conducts electricity

( )

v.

Copper

Metalloids

( )

E.

Compare metals and non-metals on the basis of given properties.

PROPERTIES

METALS

NON-METALS

i.

Hardness

……………………………………………….

……………………………………………….

ii.

Lustre

……………………………………………….

……………………………………………….

iii.

Brittleness

……………………………………………….

……………………………………………….

iv.

Malleability

……………………………………………….

……………………………………………….

v.

Ductility

……………………………………………….

……………………………………………….

vi.

Conducting capacity

……………………………………………….

……………………………………………….

F.

Write the percentage(%) of the constituents of the following alloys.

Alloys

Constituents of alloys

i.

Brass

Zinc …………………% and Copper ………………. %

ii.

Bronze

Tin …………………..% and Copper ………………… %

iii.

Bell metal

Tin …………………..% and Copper …………………..%

iv.

Stainless steel

Iron…………..%, Chromium ……………..%, Manganese ……………% and Carbon …………..%

v.

Rold Gold(Artificial gold)

Copper …………………… % and Aluminium ………………… %

G.

Classify the metals and non-metals from the given substances.

Iron ball, aluminium sheet, paper, wooden board, silver coin, chlorine water, rubber, comb, platinum ring, china-clay plate

METALS

NON-METALS

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

…………………………………………………….

H.

Choose the correct answer.

i.

…………………….. is a non-metal which also participates in alloying.

1. Carbon

1. Gold

1. Mercury

1. Bromine

ii.

Which of the following is the hardest substance?

1. Diamond

1. Cadmium

1. Tungsten

1. Gold

iii.

What is Bronze?

1. Alloy

1. Metalloid

1. Metal

1. Non-metal

iv.

Which of the following is metalloid?

1. Arsenic

1. Stainless Steel

1. Copper

1. Mercury

v.

Which one is the correct statement?

1. Metals do not show metallic luster.

1. Metals cannot be broken down into pieces.

1. Metals are not malleable and ductile.

1. Metals do not have high melting and boiling point.

vi.

Which one is the false statement?

1. Brass is an alloy of Copper and Zinc.

1. Brass is an alloy of Tin and Copper.

1. Bronze is an alloy of Tin and Copper.

1. Rold gold is as alloy of Copper and Aluminium.