In the study, the researchers contaminated four different surfaces - stainless steel,ceramic tile,wood and carpet-with bacteria ,then,the
investigators dropped food on the surfaces and allowed the food to sit for a certain amounts of time:less then a second,5 seconds,
30 seconds or 5 minutes.The scientists tested four food types:watermelon, bread, bread and butter, and gummy candy
investigators dropped food on the surfaces and allowed the food to sit for a certain amounts of time:less then a second,5 seconds,
30 seconds or 5 minutes.The scientists tested four food types:watermelon, bread, bread and butter, and gummy candy
Words i don’t know contamination, bacteria,ceramic and surfaces
Contamination
Bacteria
Ceramic
Surfaces
The words
contamination
the risk of contamination by dangerous bacteria
bacteria
Small things that give you a virus
Ceramic
made of clay and permanently hardened by heat
No comments:
Post a Comment
Please structure your comments as follows:
Positive - Something done well
Thoughtful - A sentence to let us know you actually read/watched or listened to what they had to say
Helpful - Give some ideas for next time or ask a question you want to know more about