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Grade 10 · Science · Challenge

Free Science Concepts and Evidence worksheet - version 16

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-144W82C-19D7

1.

What type of bond transfers electrons?A. An acidic solution B. Ionic bond C. 6.022 x 10^23 particles D. Atoms of each element

2.

What happens to reaction rate when temperature usually rises?A. Covalent bond B. Ionic bond C. Atoms of one element with different neutron counts D. It increases

3.

What type of bond shares electrons?A. Ionic bond B. 6.022 x 10^23 particles C. Atoms of one element with different neutron counts D. Covalent bond

4.

What must a balanced chemical equation conserve?A. It increases B. Atoms of each element C. 6.022 x 10^23 particles D. An acidic solution

5.

What is an isotope?A. An acidic solution B. Ionic bond C. Covalent bond D. Atoms of one element with different neutron counts

6.

What does pH below 7 indicate?A. An acidic solution B. Protons C. Atoms of one element with different neutron counts D. Ionic bond

7.

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

8.

What does an atomic number count?A. Protons B. 6.022 x 10^23 particles C. An acidic solution D. Covalent bond

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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 16
  1. What type of bond transfers electrons?Ionic bond
  2. What happens to reaction rate when temperature usually rises?It increases
  3. What type of bond shares electrons?Covalent bond
  4. What must a balanced chemical equation conserve?Atoms of each element
  5. What is an isotope?Atoms of one element with different neutron counts
  6. What does pH below 7 indicate?An acidic solution
  7. What is a mole?6.022 x 10^23 particles
  8. What does an atomic number count?Protons

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.