C2.4.3 IGNEOUS ROCKS

Question 1

PROPERTIES OF IGNEOUS ROCKS

Answer 1

DURABLE AND HARD, CRYSTALS ARE LOCKED TIGHTLY TOGETHER

NOT POROUS N0 SPACE BETWEEN THE CRYSTALS

Question 2

WHAT IS IT USED FOR

GIVE TWO EXAMPLES

Answer 2

PAVEMENT AND RAIL TRACKS

E.G BASALT AND GRANITE

Question 3

HOW IS IT FORMED

Answer 3

MOLTEN ROCKS FORM WHEN ROCKS MELT and example is MAGMA

MAGMA THEN COOLS AND SOLIDIFIES TO FORM IGNEOUS ROCKS

Question 4

EXTRUSIVE ROCKS ARE WHEN

Answer 4

LAVA COOLS DOWN QUICKLY PRODUCING SMALL CRYSTALS

Question 5

INTRUSIVE ROCKS ARE WHEN

WHY DO THEY MAKE BIGGER CRYSTALS

Answer 5

MAGMA COOLS DOWN VERY SLOWLY PRODUCING LARGER CRYSTALS

THIS IS BECAUSE THE PARTICLES HAVE MORE TIME TO ARRANGE THEMSELVES