J.Angielski
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cancer, cells, elements, formula, germs, molecule, reaction, vaccines
1. Wather consists of two chemical ________ : oxygen and hydrogen.
2. Burning is an example of a chemical ________ .
3. ______ are used to protect our health.
4. The ______ for the area of a circle is (pi r kwadrat)
5. The human body has about 100 trillion ________ .
6. _______ like bacteria cause many diseases.
7. _______ is one of the most dangerous diseases.
8. The smallest bit of any substance is a ________ .
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cancer, cells, elements, formula, germs, molecule, reaction, vaccines
1. Wather consists of two chemical ___elements_____ : oxygen and hydrogen.
2. Burning is an example of a chemical ___reaction_____ .
3. ___vaccines___ are used to protect our health.
4. The ___formula___ for the area of a circle is (pi r kwadrat)
5. The human body has about 100 trillion ___cells_____ .
6. ___germs____ like bacteria cause many diseases.
7. ____cancer___ is one of the most dangerous diseases.
8. The smallest bit of any substance is a ____molecule____ .
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