science

Question 1

si units of length

Answer 1

m, cm, km

Question 2

how many mm in 1cm

Answer 2

10mm

Question 3

how many cm in 1m

Answer 3

100cm

Question 4

how many m in 1km

Answer 4

1000m

Question 5

name instruments to measure length

Answer 5

1. metre stick, ruler’
   2 opisometer, digital map measurer
   3 trundle wheel
   4 vernier callipers, digital callipers

Question 6

the si unit of mass

Answer 6

kg

Question 7

what is an electronic balance used for

Answer 7

to find the mass

Question 8

the si unit of time

Answer 8

second

Question 9

the si unit of temperature

Answer 9

kelvin

Question 10

what does SI stand for

Answer 10

the international system of units, the si system is a standard system

Question 11

temperature is also measured in

Answer 11

Celsius, Fahrenheit

Question 12

the units of volume

Answer 12

m3, cm3, mm3

Question 13

how do you find the area of an irregularly shaped flat object?

Answer 13

graph paper

Question 14

how do you find the volume of an irregularly shaped object?

Answer 14

1put water in a measuring cylinder.
2measure the water in the measuring cylinder.
3 Now put a stone in the measuring cylinder
4 measure how much the water level rises

Question 15

how do you find the volume of a dig irregularly shaped object?

Answer 15

1fill an overflow can to the top.
2put a stone in the overflow can
3 collect the water that overflowed in a measuring cylinder.
4read the volume in the measuring cylinder.