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Worksheet on the differences and similarities between yeast cells, bacterial cells and viruses.

Entering some data into spreadsheet and identifying cell names.

Redox reaction for electrochemical cell

Cell's organelles

Cell strcture

Plant cell

Five difficult terms to help review.

This is good for middle school students

cell references types of cell references

A. Complete the sentences with always, never, sometimes, or usually.
1. I hate exercising.
I..................................go to the gym.
2. I go jogging two or three times a month.
I..................................go jogging.
3. I play the guitar every day in the afternoon. 
I..................................play the guitar in the afternoon.
4. I play video games after supper most days.
I..................................play video games after supper.
5. I stay back after school on Tuesdays and Thursdays for soccer practice.
I..................................stay back after school.
6. We do not have homework on the weekend.
We.................................. have homework on the weekend.
B. Complete the sentences about yourself. Use the frequency adverbs in the box. 
Answers will vary.
1. I..........................go to restaurants. 
2. I...........................watch horror films.
3. I...........................wear glasses. 
4. I..........................use a cell phone.

Plantcell labelling

Parts of a cell

cell types

Reading about technology-applications

Write the simple PAST tense of the verbs in parentheses.

1. Bianca and her friends ______ (plan) to have a picnic but the weather was bad, and they had to cancel.

2. One of the older ladies __________ (trip) and ______ (fall) because there were many rocks and pebbles on the path.

3. Do you know where my group ____ (go)? I _____ (lose) them in the crowd.

4. Although the dancing squad _________ (practice) for weeks, they did not come in first place in the competition.

5. Every day I put my cell phone away in class. Yesterday, I _______ (leave) it there because I _________ (forget) to take it with me.

6. My best friend and I ______ (argued) yesterday. She _____ (hurt) my feelings because she ____ (say) mean things about me.

7. After we _____ (calm) down and _____ (talk), she ________ (apologize) and we _________ (become) friends again.

8. My Dad _________ (want) to buy something very special for my mother on their anniversary. He ________ (save) money in order to buy it.

9. When he saw the bracelet on sale, he __________ (order) it and ________ (buy) it.

10. The guys _______(be) disappointed that their team did not win the game. They ______ (spend) a lot of money on the tickets and _____ (drive) a long way to get there.

11. You ___________ (visit) your uncle and aunt in Tennessee, didn't you? I ____ (try) to call you, but my calls were not going through.

12. He ______ (tell) you how to build the doghouse and it appears that you ___________ (listen) well because it looks very sturdy.

13. If you ____ (have) another chance to past the test, you should have ______ (study) hard to get a better grade.

14. We ____ (use) all of the supplies at the campsite. When we ____ (run) out of everything, we _____ (have) to go to the store.

15. At the park, we ______ (drink) a lot of water, because it ___ (is) very hot. We also ____ (feed) bread to the ducks at the lake.

16. At the end of the day, I ____ (feel) tired, so I _____ (take) my vitamins and ___ (go) to bed.

work sheet

differences between animal cell and plant cell