Содержание
- 2. We eat different food every day. Food can be sweet, salty, sour and bitter. How do
- 3. The are thousands nerve sensors on our tongue. Some of them react to sweet food, others
- 4. Experiment№1 Dry your tongue with a napkin. Then put some sugar on your tongue.You will feel
- 5. Experiment№2 Put a little salt on the back part of the tongue.You will feel nothing. Put
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