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It is 2 o C - PowerPoint PPT Presentation


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4 3 2 1 0 -1 -2 -3. It is 2 o C. The temperature drops by 3 degrees. What temperature is it now?. -1 o C. 4 3 2 1 0 -1 -2 -3. It is 4 o C. The temperature drops by 5 degrees. What temperature is it now?. -1 o C. 4 3 2 1 0 -1 -2 -3. 4 3 2 1 0 -1 -2 -3. 4 3

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Presentation Transcript
it is 2 o c

4

3

2

1

0

-1

-2

-3

It is 2oC
  • The temperature drops by 3 degrees
  • What temperature is it now?

-1oC

it is 4 o c

4

3

2

1

0

-1

-2

-3

It is 4oC
  • The temperature drops by 5 degrees
  • What temperature is it now?

-1oC

it is 2 o c3

4

3

2

1

0

-1

-2

-3

4

3

2

1

0

-1

-2

-3

4

3

2

1

0

-1

-2

-3

It is -2oC

4

3

2

1

0

-1

-2

-3

  • The temperature rises by 3 degrees
  • What temperature is it now?

+1oC

slide4

4

3

2

1

0

-1

-2

-3

4

3

2

1

0

-1

-2

-3

4

3

2

1

0

-1

-2

-3

4

3

2

1

0

-1

-2

-3

4

3

2

1

0

-1

-2

-3

3 - 4 =

-1

This is a

negative

number

it is 10 o c

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

It is 10oC
  • The temperature drops by 15oC
  • What is the temperature now?

-5oC

it is 15 o c

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

It is 15oC
  • The temperature drops by 20oC
  • What is the temperature now?

-5oC

slide7

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

15 - 20 =

-5

slide8

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

-15+10 =

-5

slide9

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

20

15

10

5

0

-5

-10

-15

-15+20 =

+5