Відповіді: Стр.90 (1-2)

1. Look at the instructions for three experiments and complete a–j in the sentences with the words in each box.

a–blow; b–tie; c–rub; d–fill; e–stir; f–cover; g–boil; h–pour; i–wrap; j–shake.

2. Choose the correct words to complete the How it works explanation for each experiment. Then listen and check.

1–electrical; 2–metal; 3–electricity; 4–normal; 5–heavier; 6–lighter; 7–warm; 8–cold; 9–smaller.