Multiplying decimals
Area or Volume
Multiplication
Ecosystems
Other Science Review
100
1.1 x 2.2 =
2.42
100
What is the volume?
24 cm2
100
5 x 12 =
60
100
which ecosystem am I describing:
- Plants grow low to the ground and have long roots
- Temperatures are harsh and frigid
-Majority of the worlds freshwater is found here
Arctic Ecosystem
100
Which of the following statements is correct:
Gravity is a contact force that is sometimes affecting us
With every action force, there is an equal and opposite reaction
Something with the property of elasticity can be molded and shaped
It is better to have a closed truss than an open truss when designing structures
2) With every action force, there is an equal reaction
200
4.7 x 5.6 =
26.32
200
A square has an area of 81 m2 . How long is each side?
9 m
200
16 x 3
48
200
Why are decomposers important in an ecosystem?
Decomposers break down organic matter and provide nutrients for the soil.
Without decomposers, plants would lack proper nutrients and there would be too much organic waste in the world
200
What changes when water evaporates?
a) taste
b) mass
c) volume
d) colour
c) volume
300
3.4 x 4.67
15.878
300
A box is 14 cm tall, 3 cm deep, and 2 cm wide.
What is the volume of the box?
84 cm3
300
32 x 45 =
1 440
300
Describe a specific abiotic/biotic relationship within the desert ecosystem
Animals burrow in the sand
300
What is the force that opposes motion between
two surfaces?
Friction
400
17.22 x 16.1
105.042
400
What is the total area?
400 ft2
400
87 x 543 =
47, 241
400
Which ecosystem is referred to as "Earth's sponges" and why?
Wetlands
Wetlands absorb carbon dioxide like a sponge
400
What is the greenhouse effect? How does it work and how does it connect to climate change?
The greenhouse effect is the trapping of the sun's warmth in a planet's lower atmosphere. The most heat that is trapped, the warmer the planet gets
500
123.07 x 45.789
5, 635.25223
500
Determine the height of a triangle If it has an area of 80 m2 and a base of 10 m.
height = 16 m
500
563 x 611
343 993
500
Explain the process of photosynthesis
Co2, sunlight and Water ---> chloroplasts in the leaves ----> O2 and glucose
500
The mass of an object changes by
a) Adding heat
b) Adding volume
c) Removing heat
d) Adding matter
d) Adding Matter