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Grade 10 · Science · Challenge

Free Science Concepts and Evidence worksheet - version 10

Grade 10 science practice based on published U.S. learning expectations, with reproducible original variations. This printable version includes 8 grade-appropriate questions and a separate answer sheet.

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Science Concepts and Evidence

Grade 10 · Stretch challenge · 8 questions · Version PG-13KX0OE-19D7

1.

What does an atomic number count?A. 6.022 x 10^23 particles B. Atoms of each element C. Protons D. It increases

2.

What is an isotope?A. Ionic bond B. 6.022 x 10^23 particles C. An acidic solution D. Atoms of one element with different neutron counts

3.

What type of bond shares electrons?A. Covalent bond B. Protons C. Atoms of one element with different neutron counts D. Ionic bond

4.

What is a mole?A. It increases B. 6.022 x 10^23 particles C. Atoms of one element with different neutron counts D. Covalent bond

5.

What must a balanced chemical equation conserve?A. Atoms of each element B. An acidic solution C. It increases D. Protons

6.

What does pH below 7 indicate?A. 6.022 x 10^23 particles B. Atoms of each element C. Atoms of one element with different neutron counts D. An acidic solution

7.

What happens to reaction rate when temperature usually rises?A. An acidic solution B. 6.022 x 10^23 particles C. Covalent bond D. It increases

8.

What type of bond transfers electrons?A. Atoms of one element with different neutron counts B. Ionic bond C. Atoms of each element D. Protons

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Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 10
  1. What does an atomic number count?Protons
  2. What is an isotope?Atoms of one element with different neutron counts
  3. What type of bond shares electrons?Covalent bond
  4. What is a mole?6.022 x 10^23 particles
  5. What must a balanced chemical equation conserve?Atoms of each element
  6. What does pH below 7 indicate?An acidic solution
  7. What happens to reaction rate when temperature usually rises?It increases
  8. What type of bond transfers electrons?Ionic bond

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.