Use the imperative or the present simple tense to fill in the gap. She always ............................ (wash) her hands before and after an experiment.
washes
Oops!
Check
Okay!
Check
15
What is the imperative?
Wear lab coats, safety glasses and closed shoes in the lab.
Oops!
Check
Okay!
Check
15
What is the imperative?
Don't wear flip flops. / Wear closed toe shoes.
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
shark
Other team loses 25 points!
Okay!
shark
Other team loses 20 points!
Okay!
thief
Give points!
5
10
15
20
25
15
Use the imperative or the present simple tense to fill in the gap. "............... (use) a volumetric flask to measure precise volumes of liquid materials in lab experiments."
Use
Oops!
Check
Okay!
Check
15
Complete the sentence with an imperative or a present simple form. ........................................ (not touch) hazardous substances.
Don't touch
Oops!
Check
Okay!
Check
baam
Lose 10 points!
Oops!
gift
Win 10 points!
Okay!
gift
Win 5 points!
Okay!
thief
Give points!
5
10
15
20
25
monster
Reset all scores!
Oops!
gold
Win 50 points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 20 points!
Oops!
boom
Lose 50 points!
Oops!
fairy
Take points!
5
10
15
20
25
shark
Other team loses 25 points!
Okay!
baam
Lose 15 points!
Oops!
15
What is the imperative?
Don't eat or drink in the lab.
Oops!
Check
Okay!
Check
15
Use the imperative or the present simple tense to fill in the gap. Chroline ................................ (cause) burns and eye damage.
causes
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Check
Okay!
Check
15
What is the imperative?
Don't run in the lab.
Oops!
Check
Okay!
Check
15
Use the imperative or the present simple tense to fill in the gap. We ................................ (store) test tubes in the rack to avoid spillage.
store
Oops!
Check
Okay!
Check
15
Use the imperative or the present simple tense to fill in the gap. Lab technicians ............................ (wear) proper PPE when handling acids and chemicals.