1, Short sleeves
(The word "SLEEVES" is written short—cut off)

2, Blue sky
(The word "SKY" is in blue color)

3, Heatwave
(The word "HEAT" is waving)

4, Thunderstorm
("TH" is under the word "STORM" → TH under storm)

5, Travel overseas
("TRAVEL" is over a sea of C’s = Travel over seas)

6, Short shorts
(The word "shorts" is written twice, one above the other = short shorts)

7, Cool down
(The word "COOL" is written downwards)

8, Ice cream
(The Roman numeral I (ice) is above "CREAM" = Ice cream)

9, Flip flop
(The word "FLOP" is flipped = flip flop)

10, Summer break
(The word “summer” is broken by an arrow)

11, Picnic basket
(The word “basket” is missing “ASK” = picnic b-ASK-et)

12, Ice cube
(The word "ICE" is inside a cube = Ice cube)