Bill Nye: Chemical Reactions

Name: ____________________________

Bill Nye: Chemical Reactions

Vocabulary

chemical reaction compound

element

endothermic

energy

exothermic

Use the word bank above to fill in the blanks.

1. A(n) _______________________________ is matter that is composed of 2 or more different kinds of atoms.

2. A chemical reaction in which energy is released/given off is _____________________________________.

3. A(n) _________________________________ is a process in which substances are changed into other substances.

4. Matter that is composed of only 1 kind of atom is a(n) ______________________________.

5. ___________________ is the ability to do work and/or transfer heat.

6. A chemical reaction in which energy is absorbed/taken in is _______________________________.

Knew/New

Write down 3 things you already knew about chemical reactions that were confirmed through watching the video:

1.

2.

3.

Write down 3 new things that you learned from watching the video: 1.

2.

3.

Episode Guide

1. Chemicals can react to form new _________________________________.

2. Chemical reactions happen when ____________________ hook together.

3. Energy is given off during a chemical reaction because ____________________ are combining with other __________________________.

4. During the "Try this" experiment, we see the students using vinegar and salt to clean old copper pennies. The copper gets stripped away and the pennies look new again. Explain why you think this happens. __________________________________________________________________________________________

5. When vinegar and baking soda react together, the new substance that is produced is ___________________.

6. _______________ & ______________ are both dangerous by themselves, but when they react together they form table salt.

7. Pyrotechnician is a name given to people who work to create _________________________.

8. In another experiment, we see kids blow up a balloon by mixing together vinegar and baking soda. When the kids touch the blown up balloon, it is ____________ to the touch. This means that the reaction is endothermic or exothermic

9. When someone gets hurt playing sports, often times a cold pack is used for the injury. The cold pack takes up more energy than it gives off and it gets very ___________ to the touch. This means that the reaction taking place is endothermic or exothermic

10. How do you know baking a cake is a chemical reaction? ________________________________________

11. There are ___________ naturally occurring elements.

12. If elements are in the same group on the periodic table, what does that tell you? ______________________ __________________________________________________________________________________________

True or False

1. When something burns, heat & light are given off.

T or F

2. Your stomach growling is an example of a chemical reaction.

T or F

3. Water is 1 part hydrogen and 2 parts oxygen.

T or F

4. When baking a cake, a chemical reaction takes place.

T or F

5. Everything is made of chemicals.

T or F

6. Alfred Nobel invented dynamite.

T or F

7. You should always wear safety goggles when working with chemicals.

T or F

8. Sodium chloride is better known as sugar.

T or F

9. A substance can feel a little warm if the reaction is endothermic.

T or F

10. When developing film, red light doesn't affect the picture.

T or F

11. A cold pack gets cold because the reaction takes more energy than it gives off.

T or F

12. If chemicals behave similarly, they are grouped together on the periodic table.

T or F

13. Chemical reactions happen when protons link atoms together.

T or F

14. When vinegar and baking soda react, oxygen is produced.

T or F

15. Fireworks are not an example of chemical reactions.

T or F

Name: __________A_n_s_w__e_r _K_e_y_________

Bill Nye: Chemical Reactions

Vocabulary

chemical reaction compound

element

endothermic

energy

exothermic

Use the word bank above to fill in the blanks. 1. A(n) __________c_o_m_p__o_u_n_d_____________ is matter that is composed of 2 or more different kinds of atoms. 2. A chemical reaction in which energy is released/given off is ____________e_x_o_t_h_e_rm__ic_________________. 3. A(n) _________c_h_e_m_i_c_a_l r_e_a_c_t_io_n___________ is a process in which substances are changed into other substances. 4. Matter that is composed of only 1 kind of atom is a(n) __________e_l_e_m_e_n_t______________.

5. _____E_n_e_r_g_y_________ is the ability to do work and/or transfer heat.

6. A chemical reaction in which energy is absorbed/taken in is _________e_n_d_o_t_h_e_r_m_i_c____________.

Knew/New

Write down 3 things you already knew about chemical reactions that were confirmed through watching the video:

1. Answers will vary.

2.

3.

Write down 3 new things that you learned from watching the video: 1.

Answers will vary. 2.

3.

Episode Guide

1. Chemicals can react to form new ___________c_h_e_m__ic_a_l_s______________.

2. Chemical reactions happen when ______e_le_c_t_ro__n_s_______ hook together.

3. Energy is given off during a chemical reaction because _____e_l_e_c_tr_o_n_s________ are combining with other ______e_l_e_ct_r_o_n_s_____________.

4. During the "Try this" experiment, we see the students using vinegar and salt to clean old copper pennies. The copper gets stripped away and the pennies look new again. Explain why you think this happens. _C_o_p_p_e_r_a_t_o_m_s__in__th_e__p_e_n_n_y_r_e_a_c_t _w_i_th__o_x_y_g_e_n_a_t_o_m_s__fr_o_m__t_h_e_a_i_r _&__to_g_e_t_h_e_r_t_h_e_y_f_o_r_m__c_o_p_p_e_r _o_x_id_e__w_h_i_ch____

makes the pennies look dull and dirty. The copper oxide dissolves in a weak acid (the vinegar & salt).

5. When vinegar and baking soda react together, the new substance that is produced is ____c_a_rb_o_n__d_io__xi_d_e____.

6. ____S_o_d_i_u_m______ & ___c_h_lo_r_in_e______ are both dangerous by themselves, but when they react together they form table salt.

7. Pyrotechnician is a name given to people who work to create _______fi_re_w__o_rk_s____________.

8. In another experiment, we see kids blow up a balloon by mixing together vinegar and baking soda. When the kids touch the blown up balloon, it is ____w__a_rm_____ to the touch. This means that the reaction is endothermic or exothermic

9. When someone gets hurt playing sports, often times a cold pack is used for the injury. The cold pack takes up more energy than it gives off and it gets very ____c_o_ld_____ to the touch. This means that the reaction taking

place is endothermic or exothermic

The ingredients (flour, milk, eggs, etc.) are changed

10. How do you know baking a cake is a chemical reaction? ____________i_n_t_o_a_n_e_w__s_u_b_s_t_a_n_c_e_. __________

11. There are ____9_2______ naturally occurring elements.

12. If elements are in the same group on the periodic table, what does that tell you? ______________________ _______T_h_e_e_l_e_m_e_n_t_s_i_n_t_h_a_t_g_r_o_u_p_b_e_h_a_v_e__s_im__ila_r_l_y_d_u_r_in_g__a_c_h_e_m__ic_a_l _re_a_c_t_io_n_.__________________________

True or False

1. When something burns, heat & light are given off.

T or F

2. Your stomach growling is an example of a chemical reaction.

T or F

3. Water is 1 part hydrogen and 2 parts oxygen.

T or F

4. When baking a cake, a chemical reaction takes place.

T or F

5. Everything is made of chemicals.

T or F

6. Alfred Nobel invented dynamite.

T or F

7. You should always wear safety goggles when working with chemicals.

T or F

8. Sodium chloride is better known as sugar.

T or F

9. A substance can feel a little warm if the reaction is endothermic.

T or F

10. When developing film, red light doesn't affect the picture.

T or F

11. A cold pack gets cold because the reaction takes more energy than it gives off.

T or F

12. If chemicals behave similarly, they are grouped together on the periodic table.

T or F

13. Chemical reactions happen when protons link atoms together.

T or F

14. When vinegar and baking soda react, oxygen is produced.

T or F

15. Fireworks are not an example of chemical reactions.

T or F

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