keyword

chapter 21 review physical science answers

Monthly search volume and cost-per-click data for "chapter 21 review physical science answers" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=chapter+21+review+physical+science+answers&country=us" +--------------+------------------+ | volume | 20 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
chapter 21 review answers	30	$0	3/20
section 21.2 electromagnetism answer key	30	$0	2/20
physical science chapter 21 review answers	20	$0	11/20
chapter 21 assessment	20	$0	2/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=chapter+21+review+physical+science+answers&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt