Grade 12 Chemistry Skill Builder Worksheet: Chemistry and Animals

Animals Skill Builder

Grade 12 Chemistry Animals Skill Builder Very Easy 20 Questions 7 Views

Classroom Worksheet

Grade 12 Chemistry Skill Builder Worksheet: Chemistry and Animals

Animals Skill Builder

Name____________________________

Date________________

Score______ / 20

Grade: Grade 12

Subject: Chemistry

Topic: Animals

Time: 20 Minutes

Difficulty: Very Easy

Questions: 20

Instructions:
Read each question carefully. Answer in complete sentences when needed. Show your work for calculation questions. Begin with the easiest questions and work through the set in order.

Skills Practiced:

Animals
Chemistry
Critical Thinking
Problem Solving

1Question

What is chemistry?

2Question

Name one element found in all living animals.

3Question

Which main substance makes up most of an animal's body: water, metal, or glass?

4Question

What type of bond joins atoms in many biological molecules found in animals?

5Question

What is the chemical symbol for oxygen?

6Question

Animals use glucose for energy. Is glucose a carbohydrate, protein, or lipid?

7Question

What is the pH scale used to measure?

8Question

Blood in animals is usually slightly basic. Is its pH above or below 7?

9Question

What gas do many animals need for cellular respiration?

10Question

What gas is produced as a waste product during cellular respiration?

11Question

Which nutrient group is mainly used to build muscles and body tissues: proteins, sugars, or salts?

12Question

What is the main mineral in animal bones and teeth?

13Question

Why is water important for animals? Give one reason.

14Question

What do enzymes do in animal bodies?

15Question

A solution has a pH of 2. Is it acidic, neutral, or basic?

16Question

A solution has a pH of 8. Is it acidic, neutral, or basic?

17Question

Animals store extra energy mainly as what type of molecule: starch, lipids, or DNA?

18Question

What is the function of hemoglobin in animal blood?

19Question

How many electrons are in a neutral atom of carbon?

20Question

If an animal cell uses one glucose molecule during respiration, what are the main products formed?

Answer Key

#	Answer
1	Chemistry is the study of matter, its properties, and the changes it undergoes.
2	Carbon.
3	Water.
4	Covalent bond.
5	O.
6	Carbohydrate.
7	How acidic or basic a solution is.
8	Above 7.
9	Oxygen.
10	Carbon dioxide.
11	Proteins.
12	Calcium.
13	It helps transport substances, regulate temperature, or support chemical reactions.
14	They speed up chemical reactions.
15	Acidic.
16	Basic.
17	Lipids.
18	It carries oxygen.
19	6.
20	Carbon dioxide, water, and energy (ATP).